98971 + Interview Questions in Primary School in Math

1.	41. Every point on the x axis is of the form. (a) (0, y)(c)(x, y)(b) (x, 0)(d) (x, 1)
Answer» Answer: EVERY point on the x AXIS is =0,x,x&x ans.

1.

41. Every point on the x axis is of the form. (a) (0, y)(c)(x, y)(b) (x, 0)(d) (x, 1)

Answer»

Answer:

EVERY point on the x AXIS is =0,x,x&x ans.

Discussion

2.	Which is higher 12°C or -12°C
Answer» Answer: 12 DEGREE celcius plzz MARK as BRAINLIEST answer Step-by-step EXPLANATION:

2.

Which is higher 12°C or -12°C

Answer»

Answer:

12 DEGREE celcius

plzz MARK as BRAINLIEST answer

Step-by-step EXPLANATION:

Discussion

3.	Chapter - polynomialclass 9th
Answer» Answer: I am ALSO 9th CLASS u KNOW

3.

Chapter - polynomialclass 9th

Answer»

Answer:

I am ALSO 9th CLASS u KNOW

Discussion

4.	(2x2-5x2+8x-5) by (2x2-3x+5) Divide
Answer» PLEASE MARK me as your BRAINLIEST.

Discussion

5.	Solve for x: √(3/5)^1-2x= 4 17/27
Answer» ANSWER: *0.774^ 1-2x =125/17* *0.774-2x=125/17* *2x=0.774-125/17* *2x=-6.578* therefore X = -6.578/2 => -3.289 hope this HELPS u mark me as BRANLIEST if u like my answer!!! Step-by-step EXPLANATION:

5.

Solve for x: √(3/5)^1-2x= 4 17/27

Answer»

ANSWER:

0.774^ 1-2x =125/17

0.774-2x=125/17

2x=0.774-125/17

2x=-6.578

therefore X = -6.578/2

=> -3.289

hope this HELPS u

mark me as BRANLIEST if u like my answer!!!

Step-by-step EXPLANATION:

Discussion

6.	625÷(+25) give me answer
Answer» $625÷(+25)=25$ .

Discussion

7.	if gear b has 12 teeth and gear c has 20 teeth, how many teeth should gear a have so that when gear a turns once, the other two also rotate once
Answer» ANSWER: i am not SURE Step-by-step EXPLANATION:

7.

if gear b has 12 teeth and gear c has 20 teeth, how many teeth should gear a have so that when gear a turns once, the other two also rotate once

Answer»

ANSWER:

i am not SURE

Step-by-step EXPLANATION:

Discussion

8.	Pythagorean triplet please do second question
Answer» Answer: the required TRIPLET is 14,48,50 Step-by-step explanation: LET, 2n= 14 n= 7 now, n²-1 7²-1=48 n²+1 7²+1=50 so, the required triplet is 14,48,50.

8.

Pythagorean triplet please do second question

Answer»

Answer:

the required TRIPLET is 14,48,50

Step-by-step explanation:

LET, 2n= 14

n= 7

now,

n²-1

7²-1=48

n²+1

7²+1=50

so, the required triplet is 14,48,50.

Discussion

9.	Katie gets a 20% pay rise. Her new wage is £264 per week. What was her wage before the pay rise?
Answer» Answer: £ 220 Step-by-step EXPLANATION: OLD pay = x x + 20/100 x = 264 120/100 x = 264 solve, x = 220

9.

Katie gets a 20% pay rise. Her new wage is £264 per week. What was her wage before the pay rise?

Answer»

Answer:

£ 220

Step-by-step EXPLANATION:

OLD pay = x

x + 20/100 *x = 264

120/100 *x = 264

solve,

x = 220

Discussion

10.	And the above Que Pls then I will mark as brainst........
Answer» Answer: 2)4 to the power of 5TH root of 45 5 to the root of 4 to the power of 45 3)6 to the power of 7th root of 81 7th root of 6 to the power of 81 4)4 to the power of 10th root of 100 10th root of 4 to the power of 100 5)7 to the power of cube root of 21 cube root of 7 to the power of 21

10.

And the above Que Pls then I will mark as brainst........

Answer»

Answer:

2)4 to the power of 5TH root of 45

5 to the root of 4 to the power of 45

3)6 to the power of 7th root of 81

7th root of 6 to the power of 81

4)4 to the power of 10th root of 100

10th root of 4 to the power of 100

5)7 to the power of cube root of 21

cube root of 7 to the power of 21

Discussion

11.	a car covers a distance of 45.6 km in 2.4 liters of petrol.how much distance will it cover in one litre of petrol?
Answer» Distance covered in 2.4 liters of PETROL = 43.2 KM. Therefore APPLYING unitary method we GET, Distance travelled in 1 liter of petrol = 43.2/2.4 = 18 km.

11.

a car covers a distance of 45.6 km in 2.4 liters of petrol.how much distance will it cover in one litre of petrol?

Answer»

Distance covered in 2.4 liters of PETROL = 43.2 KM.

Therefore APPLYING unitary method we GET, Distance travelled in 1 liter of petrol = 43.2/2.4 = 18 km.

Discussion

12.	Show on the number line 1st 3x-2
Answer» GUESS this is RIGHT.. This is your ANSWER BUDDY

12.

Show on the number line 1st 3x-2

Answer»

GUESS this is RIGHT.. This is your ANSWER BUDDY

Discussion

13.	1. From the following information GUNS and RUNS are parallelograms. Find x and y. (Lengths are incm).in which A. SN = 26cm, UN = 18cm, GU = (3y - 1)cm, SG = (3x)cmB. OS = 20cm, OU = (y + 7)cm, OR = 16cm, ON = (x + y)
Answer» ANSWER: a.51 is the answer Step-by-step EXPLANATION: b.35 is the answer ADDED

13.

1. From the following information GUNS and RUNS are parallelograms. Find x and y. (Lengths are incm).in which A. SN = 26cm, UN = 18cm, GU = (3y - 1)cm, SG = (3x)cmB. OS = 20cm, OU = (y + 7)cm, OR = 16cm, ON = (x + y)

Answer»

ANSWER:

a.51 is the answer

Step-by-step EXPLANATION:

b.35 is the answer ADDED

Discussion

14.	Javed was given 3/5 of a basket of oranges. What fraction of oranges left with him?
Answer» Answer: LET the REMAINING FRACTION be x 3/5 + x = 1[ 1 is the whole] x = 1 - 3/5 x = 0.4 therefore the remaining fraction of oranges = 0.4 or (2+2)² Step-by-step explanation: HOPE IT HELPS AND PLS MARK AS BRAINLIEST

14.

Javed was given 3/5 of a basket of oranges. What fraction of oranges left with him?

Answer»

Answer:

LET the REMAINING FRACTION be x

3/5 + x = 1[ 1 is the whole]

x = 1 - 3/5

x = 0.4

therefore the remaining fraction of oranges = 0.4 or (2+2)²

Step-by-step explanation:

HOPE IT HELPS

AND

PLS MARK AS BRAINLIEST

Discussion

15.	Find the value of k , if (-2)^k+1 x (-2)^3 =(-2)^7
Answer» Hi! The answer for your question is k = 3 Step-by-step explanation: $(-2)^{k+1}$ × $(-2)^{3}$ = $(-2)^{7}$ By the laws of EXPONENTS, $a^{m}$ × $a^{n}$ = $a^{m+n}$ So, applying it here, $(-2)^{k+1+3}$ = $(-2)^{7}$ $(-2)^{k+<klux>4</klux>}$ = $(-2)^{7}$ Since the BASES are equal, we can equate their powers. So, k + 4 = 7 k = 7 - 4 = 3 I hope it helps Enjoy Learning! #StayHomeStaySafe

15.

Find the value of k , if (-2)^k+1 x (-2)^3 =(-2)^7

Answer»

Hi!

The answer for your question is k = 3

Step-by-step explanation:

$(-2)^{k+1}$ × $(-2)^{3}$ = $(-2)^{7}$

By the laws of EXPONENTS, $a^{m}$ × $a^{n}$ = $a^{m+n}$

So, applying it here,

$(-2)^{k+1+3}$ = $(-2)^{7}$

$(-2)^{k+<klux>4</klux>}$ = $(-2)^{7}$

Since the BASES are equal, we can equate their powers. So,

k + 4 = 7

k = 7 - 4 = 3

I hope it helps

Enjoy Learning!

#StayHomeStaySafe

Discussion

16.	The largest number that divides 64 and 72 and leave the remainder 12 and 7 respectively
Answer» ANSWER: 13 is your answer.

16.

The largest number that divides 64 and 72 and leave the remainder 12 and 7 respectively

Answer»

ANSWER:

13 is your answer.

Discussion

17.	Express 8712 as the product of primes
Answer» Answer: 8712=2×2×2×3×3×11×11. Hope it HELPS you. Mark me as BRAINLIEAST.

17.

Express 8712 as the product of primes

Answer»

Answer:

8712=2×2×2×3×3×11×11.

Hope it HELPS you.

Mark me as BRAINLIEAST.

Discussion

18.	Make big squares and rectangleslike this to find the area faster.theocTigerAt this stage children need not count each square. Encourage them to idsquares and rectangles within a footprint to know their area and then countirregular shapes. Though area of a rectangle will be done in chapter 11, sdiscover themselves that they can find the area faster through multiplicatic39
Answer» ANSWER: I LOVE you because you are QUESTION is GOOD

18.

Make big squares and rectangleslike this to find the area faster.theocTigerAt this stage children need not count each square. Encourage them to idsquares and rectangles within a footprint to know their area and then countirregular shapes. Though area of a rectangle will be done in chapter 11, sdiscover themselves that they can find the area faster through multiplicatic39

Answer»

ANSWER:

I LOVE you because you are QUESTION is GOOD

Discussion

19.	Choose the appropriate symbol from 8_7
Answer» <U>8 > 7 hope it will helps u...✌✌ plz mark as brainliest answer plz xd..☺

19.

Choose the appropriate symbol from 8_7

Answer»

<U>8 > 7

hope it will helps u...✌✌

plz mark as brainliest answer plz xd..☺

Discussion

20.	1 Are the two ratios 30 : 50 and 50: 75 equivalent?
Answer» no, they are not EQUIVALENT.

Discussion

21.	____,_____,_____ and fraction are part of the rational no system
Answer» Integers , whole number, natural number and FRACTION are part of the rational number... Hope you GOT your ANSWER please mark my answer as BRAINLIST and FOLLOW me.... Click that ♥ also I will be too happy

21.

__,_,___ and fraction are part of the rational no system

Answer»

Integers , whole number, natural number and FRACTION are part of the rational number...

Hope you GOT your ANSWER

please mark my answer as BRAINLIST and FOLLOW me....

Click that ♥ also

I will be too happy

Discussion

22.	How Big is My Hand?Trace your hand on the squared sheet on the next page.ocHow will you decide whose handis bigger — your hand or yourfriend's hand?What is the area of your hand?square cm.What is the area of your friend'shand?square cm.
Answer» ANSWER: ok i TRACED my HAND in the paper Step-by-step explanation: PLS MARK me as brainlest answer hope it will help you

22.

How Big is My Hand?Trace your hand on the squared sheet on the next page.ocHow will you decide whose handis bigger — your hand or yourfriend's hand?What is the area of your hand?square cm.What is the area of your friend'shand?square cm.

Answer»

ANSWER:

ok i TRACED my HAND in the paper

Step-by-step explanation:

PLS MARK me as brainlest answer

hope it will help you

Discussion

23.	The expression obtain when x is multiplied by 2 and subtracted from 3 I) 2x-3 II)2x + 3 III) 3-2x IV) 3X-2
Answer» ANSWER: THIRD OPTION is correct Step-by-step EXPLANATION: $3 - (x \times 2) = 3 - 2x$

23.

The expression obtain when x is multiplied by 2 and subtracted from 3 I) 2x-3 II)2x + 3 III) 3-2x IV) 3X-2

Answer»

ANSWER:

THIRD OPTION is correct

Step-by-step EXPLANATION:

$3 - (x \times 2) = 3 - 2x$

Discussion

24.	Find the difference between the place value 5 in 9523165
Answer» ANSWER: OK Step-by-step explanation: The 5 at the END is at ONES PLACE

24.

Find the difference between the place value 5 in 9523165

Answer»

ANSWER:

OK

Step-by-step explanation:

The 5 at the END is at ONES PLACE

Discussion

25.	Anyone explain that what is square root of the following numbers using long division method??
Answer» ANSWER:where is the question Step-by-step EXPLANATION:

25.

Anyone explain that what is square root of the following numbers using long division method??

Answer»

ANSWER:where is the question

Step-by-step EXPLANATION:

Discussion

26.	6×3-14÷2 please guys please give answer fast
Answer» 6×3-14÷2 18-7 11 Thus,the ANSWER is 11.

26.

6×3-14÷2 please guys please give answer fast

Answer»

6×3-14÷2

18-7

11

Thus,the ANSWER is 11.

Discussion

27.	which of the following quadrilateral have two pair of adjesent side equal and its digonal intercect at 90 degree
Answer» Rhombus and parallelogram HOPE it HELPS... PLEASE MARK my answer as the brainliest...

Discussion

28.	And the valueO4201= -+ ܝܐ e- ID81191
Answer» ANSWER: Step-by-step EXPLANATION: D=154B:B=2460 so i HOPE you UNDERSTAND the answer by yourself

28.

And the valueO4201= -+ ܝܐ e- ID81191

Answer»

ANSWER:

Step-by-step EXPLANATION: D=154B:B=2460 so i HOPE you UNDERSTAND the answer by yourself

Discussion

29.	In the given figure , find the ares of the shaded region .
Answer» ANSWER: 56 is the answer of this QUESTION

29.

In the given figure , find the ares of the shaded region .

Answer»

ANSWER:

56 is the answer of this QUESTION

Discussion

30.	Ag7. Number of triangles in the figure given below is(A) 10(B) 9(C) 8(D)11
Answer» Answer:9 Step-by-step EXPLANATION:

30.

Ag7. Number of triangles in the figure given below is(A) 10(B) 9(C) 8(D)11

Answer»

Answer:9

Step-by-step EXPLANATION:

Discussion

31.	Adam’s family expenses are 7000 dirhams a month. He made a pie chart on their expenses. How much money is his family’s food expenses?
Answer» ANSWER: Step-by-step explanation: So %of FOOD expenses.is 34% which is 34%of 7000. So 34/100×7000 = 2380 dhirams. HOPE this helps

31.

Adam’s family expenses are 7000 dirhams a month. He made a pie chart on their expenses. How much money is his family’s food expenses?

Answer»

ANSWER:

Step-by-step explanation: So %of FOOD expenses.is 34% which is 34%of 7000. So 34/100×7000 = 2380 dhirams.

HOPE this helps

Discussion

32.	( ਸੰਖੇਪ ਉੱਤਰ ਵਾਲੇ ਪ੍ਰਸ਼ਨ)ਹੇਠ ਲਿਖੇ ਪ੍ਰਸ਼ਨਾਂ ਦੇ ਉੱਤਰ ਤਿੰਨ-ਚਾਰ ਵਾਕਾਂ ਵਿੱਚ ਲਿਖੋ(ਉ) ਰਜਨੀ ਨੂੰ ਕਿਵੇਂ ਲੱਗਾ ਕਿ ਸੋਨਾ ਰਾਮ ਵਿੱਚ ਗੈਬੀ ਸ਼ਕਤੀ ਆਗਈ ਹੈ ?(ਅ)ਸੋਨਾਰਾਮ ਨੇ ਚੋਰੀ ਹੋਇਆਹਾਰ ਲੱਭਣ ਲਈ ਕੀ ਕੀਤਾ ?(ਏ) ਸੋਨਾਰਾਮਨੇ ਰਾਜੇ ਨੂੰ ਕੀ ਸੱਚਾਈ ਦੱਸੀ ?ਰਾਜੇ ਨੇ ਸੋਨਾਰਾਮ ਦੇ ਸੱਚ ਬੋਲਣ 'ਤੇ ਕੀ ਐਲਾਨ ਕੀਤਾ ?
Answer» ANSWER: google TEA HAI eska answers mil jana hai search KARLO google tea hai eska answers mil jana hai search karlo google tea nabcahwhvwvwgaggsgsbwbvwvabwhwjwhhwmain v delta tea

32.

( ਸੰਖੇਪ ਉੱਤਰ ਵਾਲੇ ਪ੍ਰਸ਼ਨ)ਹੇਠ ਲਿਖੇ ਪ੍ਰਸ਼ਨਾਂ ਦੇ ਉੱਤਰ ਤਿੰਨ-ਚਾਰ ਵਾਕਾਂ ਵਿੱਚ ਲਿਖੋ(ਉ) ਰਜਨੀ ਨੂੰ ਕਿਵੇਂ ਲੱਗਾ ਕਿ ਸੋਨਾ ਰਾਮ ਵਿੱਚ ਗੈਬੀ ਸ਼ਕਤੀ ਆਗਈ ਹੈ ?(ਅ)ਸੋਨਾਰਾਮ ਨੇ ਚੋਰੀ ਹੋਇਆਹਾਰ ਲੱਭਣ ਲਈ ਕੀ ਕੀਤਾ ?(ਏ) ਸੋਨਾਰਾਮਨੇ ਰਾਜੇ ਨੂੰ ਕੀ ਸੱਚਾਈ ਦੱਸੀ ?ਰਾਜੇ ਨੇ ਸੋਨਾਰਾਮ ਦੇ ਸੱਚ ਬੋਲਣ 'ਤੇ ਕੀ ਐਲਾਨ ਕੀਤਾ ?

Answer»

ANSWER:

google TEA HAI eska answers mil jana hai search KARLO google tea hai eska answers mil jana hai search karlo google tea nabcahwhvwvwgaggsgsbwbvwvabwhwjwhhwmain v delta tea

Discussion

33.	Factorise a^4-(b+c)^4
Answer» Step-by-step explanation: Shin Chan

33.

Factorise a^4-(b+c)^4

Answer»

Step-by-step explanation:

Shin Chan

Discussion

34.	Express each of the following as product of powers of their prime factors: (i) 405 (ii) 504 (iii) 500
Answer» This is your ANSWER

Discussion

35.	Evaluate, using the identity a²-b²=(a+b)(a-b)(1) 38²-36²(ii) 87²-77²(iii) (1074)²-(1073)²
Answer» Answer: Step-by-step EXPLANATION: i) 38² - 36² = (38+36)(38-36) = 742 = 148. ii) 87² - 77² =(87+77)(87-77) = 16410 = 1640 iii) 1074² - 1073² = (1074+1073)(1074-1073) = 2147*1 = 2147

35.

Evaluate, using the identity a²-b²=(a+b)(a-b)(1) 38²-36²(ii) 87²-77²(iii) (1074)²-(1073)²

Answer»

Answer:

Step-by-step EXPLANATION:

i) 38² - 36²

= (38+36)(38-36)

= 74*2

= 148.

ii) 87² - 77²

=(87+77)(87-77)

= 164*10

= 1640

iii) 1074² - 1073²

= (1074+1073)(1074-1073)

= 2147*1

= 2147

Discussion

36.	2. Multiply the following: (One has been done fo(a) 25 x 9 =20520 x 95x9918045225(c) 59 x 6 =61
Answer» ANSWER: .225 ,4 ,180 ,45ghjjjhhggghhh

36.

2. Multiply the following: (One has been done fo(a) 25 x 9 =20520 x 95x9918045225(c) 59 x 6 =61

Answer»

ANSWER:

.225

,4

,180

,45ghjjjhhggghhh

Discussion

37.	For what value of c, the linear equation 2x + cy = 8 has equal values of x and y for its solution?
Answer» ANSWER: When C=0, x=y=4. Step-by-step EXPLANATION: If c=0, 24 +04=8 8+0=8 :. 8=8

37.

For what value of c, the linear equation 2x + cy = 8 has equal values of x and y for its solution?

Answer»

ANSWER:

When C=0, x=y=4.

Step-by-step EXPLANATION:

If c=0,

2*4 +0*4=8

8+0=8

:. 8=8

Discussion

38.	Meg.The sides of a rectangular field are in the ratio 9.7 and its perimeter is 144 metres. Find the sides.The sides of a rectangular piece of paper are in the ratio 2:3. If the area is 150 sq. cm, find the lengthof its sides. (Hint: 52-25)sides of a triangle are in the ratio 2.3:4 and its perim is 63 cm. What are the lengths of its
Answer» Step-by-step explanation: GIVEN: Sides of a rectangular field are in ratio of 9:7 Perimeter of rectangle is 144 m. To Find: Measure of sides of rectangle? Solution: LET x be the common in given ratio. Therefore, ➼ Length = 9x m ➼ Breadth = 7X m As we know that ★ Perimeter of Rectangle = 2(Length + Breadth) ★ A/q $\implies{\rm }$ 144 = 2(9x + 7x) $\implies{\rm }$ 144 = 2(16x) $\implies{\rm }$ 144 = 32x $\implies{\rm }$ 144/32 = x $\implies{\rm }$ 4.5 = x So, Measure of sides are • Length = 9x = 9(4.5) = 40.5 m • Breadth = 7x = 7(4.5) = 31.5 m ____________________ Given: Sides of a rectangular piece of PAPER are in ratio of 2:3. Area of paper is 150 cm². To Find: Measure of sides of paper ? Solution: Let x be the common in given ratio. Then, ➼ Length of paper = 2x ➼ Breadth of paper = 3x As we know that ★ Ar. of Rectangle = Length • Breadth ★ A/q area is 150 cm² $\implies{\rm }$ 150 = 2x $\times$ 3x $\implies{\rm }$ 150 = 6x² $\implies{\rm }$ 150/6 = x² $\implies{\rm }$ 25 = x² $\implies{\rm }$ √25 = x $\implies{\rm }$ √5 $\times$ 5 = x $\implies{\rm }$ 5 = x So, Measure of sides of rectangular paper are • Length = 2x = 2(5) = 10 m • Breadth = 3x = 3(5) = 15 m ___________________ Given: Sides of a triangle are in ratio of 2:3:4. Perimeter of triangle is 63 cm. To Find: What is the length of its sides ? Solution: Let x be the common in given ratio. So, => First side = 2x => Second side = 3x => Third side = 4x As we know that ★ Perimeter of ∆ = Sum of all sides ★ A/q Perimeter is 63 cm $\implies{\rm }$ 63 = 2x + 3x + 4x $\implies{\rm }$ 63 = 9x $\implies{\rm }$ 63/9 = x $\implies{\rm }$ 7 = x Hence, It's sides are • First side = 2x = 2(7) = 14 cm. • Second side = 3x = 3(7) = 21 cm. • Third side = 4x = 4(7) = 28 cm.

38.

Meg.The sides of a rectangular field are in the ratio 9.7 and its perimeter is 144 metres. Find the sides.The sides of a rectangular piece of paper are in the ratio 2:3. If the area is 150 sq. cm, find the lengthof its sides. (Hint: 52-25)sides of a triangle are in the ratio 2.3:4 and its perim is 63 cm. What are the lengths of its

Answer»

Step-by-step explanation:

GIVEN:

Sides of a rectangular field are in ratio of 9:7
Perimeter of rectangle is 144 m.

To Find:

Measure of sides of rectangle?

Solution: LET x be the common in given ratio. Therefore,

➼ Length = 9x m

➼ Breadth = 7X m

As we know that

★ Perimeter of Rectangle = 2(Length + Breadth) ★

A/q

$\implies{\rm }$ 144 = 2(9x + 7x)

$\implies{\rm }$ 144 = 2(16x)

$\implies{\rm }$ 144 = 32x

$\implies{\rm }$ 144/32 = x

$\implies{\rm }$ 4.5 = x

So, Measure of sides are

• Length = 9x = 9(4.5) = 40.5 m

• Breadth = 7x = 7(4.5) = 31.5 m

____________________

Given:

Sides of a rectangular piece of PAPER are in ratio of 2:3.
Area of paper is 150 cm².

To Find:

Measure of sides of paper ?

Solution: Let x be the common in given ratio. Then,

➼ Length of paper = 2x

➼ Breadth of paper = 3x

As we know that

★ Ar. of Rectangle = Length • Breadth ★

A/q

area is 150 cm²

$\implies{\rm }$ 150 = 2x $\times$ 3x

$\implies{\rm }$ 150 = 6x²

$\implies{\rm }$ 150/6 = x²

$\implies{\rm }$ 25 = x²

$\implies{\rm }$ √25 = x

$\implies{\rm }$ √5 $\times$ 5 = x

$\implies{\rm }$ 5 = x

So, Measure of sides of rectangular paper are

• Length = 2x = 2(5) = 10 m

• Breadth = 3x = 3(5) = 15 m

___________________

Given:

Sides of a triangle are in ratio of 2:3:4.
Perimeter of triangle is 63 cm.

To Find:

What is the length of its sides ?

Solution: Let x be the common in given ratio. So,

=> First side = 2x

=> Second side = 3x

=> Third side = 4x

As we know that

★ Perimeter of ∆ = Sum of all sides ★

A/q

Perimeter is 63 cm

$\implies{\rm }$ 63 = 2x + 3x + 4x

$\implies{\rm }$ 63 = 9x

$\implies{\rm }$ 63/9 = x

$\implies{\rm }$ 7 = x

Hence, It's sides are

• First side = 2x = 2(7) = 14 cm.

• Second side = 3x = 3(7) = 21 cm.

• Third side = 4x = 4(7) = 28 cm.

Discussion

39.	Factorise (a-b)2 - (c-d)2
Answer» AB (C2 + d2) – a2cd – b2cd = abc2 + abd2 – a2cd – b2cd = abc2 – a2cd – b2cd + abd2 = ac (bc – ad) – bd (bc – ad) = (bc – ad) (ac – bd) if this ANSWER is correct then MARK this answer as brainlist dear buddy

39.

Factorise (a-b)2 - (c-d)2

Answer»

AB (C2 + d2) – a2cd – b2cd

= abc2 + abd2 – a2cd – b2cd

= abc2 – a2cd – b2cd + abd2

= ac (bc – ad) – bd (bc – ad)

= (bc – ad) (ac – bd)

if this ANSWER is correct then MARK this answer as brainlist dear buddy

Discussion

40.	Pls answer will thankyou and mark as brainalist...
Answer» Answer: 18000 Step-by-step explanation: 20000 - 7000 = 13000 13000 + 5000 = 18000

40.

Pls answer will thankyou and mark as brainalist...

Answer»

Answer:

18000

Step-by-step explanation:

20000 - 7000 = 13000

13000 + 5000 = 18000

Discussion

41.	फैक्टराइज एक्स क्यूब माइनस 3 एक्स स्क्वायर माइनस एक्स माइनस फाइव
Answer» if U NEED ANSWER then FOLLOW me

Discussion

42.	Find out the rational numbers between 1/4 and 1/3
Answer» Step-by-step EXPLANATION: HOPE it HELPS you my FRIEND

42.

Find out the rational numbers between 1/4 and 1/3

Answer»

Step-by-step EXPLANATION:

HOPE it HELPS you my FRIEND

Discussion

43.	The sum of a same number withOpposite signs is always.
Answer» Answer: 0 $SUGAR GENIUS ♥️Follow me ❤️$

43.

The sum of a same number withOpposite signs is always.

Answer»

Answer:

0

$SUGAR GENIUS ♥️Follow me ❤️$

Discussion

44.	Find the smallest number by which -6125 should be multiplied to make it a, perfect cube.I need a full explanation for this question
Answer» $\large{\boxed{\red{\textbf{Brainliest\:Please}}}}$ To find :- SMALLEST number by which 6125 should be multiplied to make it a, PERFECT cube. SOLUTION :- first , we will find its prime factorisation. 5 \| 6125 5 \| 1225 5 \| 245 7 \| 49 7 \| 7 ⠀\| 1 Here, the prime factors are :- 5 × 5 × 5 × 7 × 7 If we multiply 5 to 5 × 5 × 5 × 7 × 7 we will GET two pairs of all the DIGITS. _____ ⠀ _____ ⠀ _____ ⠀ _____ ⠀ _____ 5 × 5 × 5 × 5 × 7 × 7 [ two pairs :- 5 × 5 × 7 = 175 ] 5 × 5 × 5 × 5 × 7 × 7 = 6125 × 5 = 30,625 Hence, 30,625 is the perfect square of 175.

44.

Find the smallest number by which -6125 should be multiplied to make it a, perfect cube.I need a full explanation for this question

Answer»

$\large{\boxed{\red{\textbf{Brainliest\:Please}}}}$

To find :-

SMALLEST number by which 6125 should be multiplied to make it a, PERFECT cube.

SOLUTION :-

first , we will find its prime factorisation.

5 | 6125

5 | 1225

5 | 245

7 | 49

7 | 7

⠀| 1

Here, the prime factors are :- 5 × 5 × 5 × 7 × 7

If we multiply 5 to 5 × 5 × 5 × 7 × 7 we will GET two pairs of all the DIGITS.

_____ ⠀ _____ ⠀ _____ ⠀ _____ ⠀ _____

5 × 5 × 5 × 5 × 7 × 7 [ two pairs :- 5 × 5 × 7 = 175 ]

5 × 5 × 5 × 5 × 7 × 7 = 6125 × 5 = 30,625

Hence, 30,625 is the perfect square of 175.

Discussion

45.	((i) -3 + (-7) + (-4) please tell in explanation
Answer» Answer: *-14* Step-by-step explanation: *-3 + (-7) + (-4)* *= -3 - 7 - 4 [ + into - = - ]* *= -10 - 4* = *-14*

45.

((i) -3 + (-7) + (-4) please tell in explanation

Answer»

Answer:

-14

Step-by-step explanation:

-3 + (-7) + (-4)

= -3 - 7 - 4 [ + into - = - ]

= -10 - 4

= -14

Discussion

46.	इन्हें हाई जंप कॉन्टेस्ट रमेश जानती 388 बनाई मिली मीटर एंड राकेश एमपी फोर वन बाय 3 मीटर हाइट हाउ मच
Answer» ANSWER: 388 ×3 multiply KAR liyoo Step-by-step explanation: 388×3 multiply kar LOO joo answer DIVDE kar loo

46.

इन्हें हाई जंप कॉन्टेस्ट रमेश जानती 388 बनाई मिली मीटर एंड राकेश एमपी फोर वन बाय 3 मीटर हाइट हाउ मच

Answer»

ANSWER:

388 ×3 multiply KAR liyoo

Step-by-step explanation:

388×3 multiply kar LOO joo answer DIVDE kar loo

Discussion

47.	Koi mujhe square root long division method se btayega????
Answer» Step-by-step EXPLANATION: this is LONG DIVISION METHOD

47.

Koi mujhe square root long division method se btayega????

Answer»

Step-by-step EXPLANATION:

this is LONG DIVISION METHOD

Discussion

48.	What is the sum of the smallest 4- digit number and greatest 4- digit number
Answer» ANSWER: samllest is 11110 gratest if 11000

48.

What is the sum of the smallest 4- digit number and greatest 4- digit number

Answer»

ANSWER:

samllest is 11110

gratest if 11000

Discussion

49.	Il in the blanks:.) 1000 g =kg) The standard unit of mass
Answer» Step-by-step explanation: 1x10³=1x10*7 OK FRIEND

49.

Il in the blanks:.) 1000 g =kg) The standard unit of mass

Answer»

Step-by-step explanation:

1x10³=1x10*7 OK FRIEND

Discussion

50.	the plastic cases that are used to store compact disk and DVDs are about 1/2 cm thik. a company wants to cell 10 of these cases in plastic wrapping. what will be the height of a pack of 10 cases
Answer» ANSWER: Step-by-step EXPLANATION: -25000

50.

the plastic cases that are used to store compact disk and DVDs are about 1/2 cm thik. a company wants to cell 10 of these cases in plastic wrapping. what will be the height of a pack of 10 cases

Answer»

ANSWER:

Step-by-step EXPLANATION:

-25000

Discussion

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