Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

Saran is 6 times as old as his son Sankar. After 4 years, he will be 4 times as old ashis son. What are their present ages?​

Answer»

❍ Let's SAY, that the PRESENT AGE of Saran be x years and present age of his son Sankar be y years respectively.

⠀⠀⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━⠀⠀

\underline{\bigstar\:\boldsymbol{According\:to\;the\; question :}}

\underline{\ \sf{Case} \:  \it1 :}

  • Saran is 6 TIMES as old as his son Sankar. Saran's present age = x and Sankar present age = y years.

Therefore,

\dashrightarrow\sf( Saran's \:  age )  = 6 \times ( Sankar's  \: age) \\\\\\\dashrightarrow\sf x = 6 \times y \\\\\\\dashrightarrow\sf x = 6y  \qquad\qquad\bigg\lgroup\sf eq^n \; 1\bigg\rgroup

⠀⠀⠀⠀⠀⠀━━━━━━━━━━━━━━━━━━━⠀⠀

\underline{\ \sf{Case} \:  \it2:}

  • After four years, he'll be four times as old as his son Sankar.

⠀⠀⠀⠀⠀

Therefore,

⠀⠀⠀⠀⠀

\dashrightarrow\sf \Big(x + 4\Big) = 4 \times \Big(y + 4\Big) \\\\\\\dashrightarrow\sf x + 4 = 4y + 16 \\\\\\\dashrightarrow\sf  6y + 4 = 4y + 16\qquad\qquad\bigg\lgroup\sf From~eq^n \; 1\bigg\rgroup\\\\\\\dashrightarrow\sf 6y - 4y = 16 - 4\\\\\\\dashrightarrow\sf  2y = 12\\\\\\\dashrightarrow\sf y = \cancel\dfrac{12}{2}\\\\\\\dashrightarrow\underline{\boxed{\frak{\pmb{\pink{y = 6}}}}}\;\bigstar

⠀⠀⠀⠀⠀

⠀⠀⠀ ⠀\underline{\bf{\dag} \:\mathfrak{Putting\;value\;of\:y\;in\;eq^n \;(1)\: :}}⠀⠀⠀⠀

⠀⠀⠀⠀⠀

\dashrightarrow\sf x = 6 \times y\\\\\\\dashrightarrow\sf x = 6 \times 6\\\\\\\dashrightarrow\underline{\boxed{\frak{\pmb{\pink{x = 36}}}}}\;\bigstar

⠀⠀⠀⠀⠀

\therefore{\underline{\textsf{Hence, their present ages are \textbf{6 years}\:\sf{and}\;\textbf{36 years}\;{respectively}.}}}⠀⠀⠀⠀⠀⠀

2.

प्राणस्थव्योमतो में लाएप्रोष्ठत्वम् से जागर में कॉन टेष्ट और​

Answer»

ANSWER:

PLEASE MARK me BRAINLEST please

3.

Solve the following system of linear graphically 4x+6y=9;5x+7y=10​

Answer»

ANSWER:

HOPE this is HELPFUL for you

4.

-4*-1[2*(-6)+3(2*6-4-2)] who solve the question I will mark as Brainlist​

Answer»

ANSWER:

I THINK the answer is 56

Step-by-step EXPLANATION:

-4(-12+37-12-6)

-4(24-18)

-16+72

=56

5.

To pdaksh405,Arey Nahi Yaar, cloth se kyu bandhega Tumhara foot??Tumhare foot se excessive khoon na nikle, iske liye tumhare foot pe Kuch medicine daal ke blood clotting Kar Diya jayega!!Tum jaldi Kisi Accha doctor ko consult Karo Bhai!!​

Answer»

Answer:

50 PTS ke QUESTION kro sabhi FOLLOWING krege the full-length album is Mobile no problem

Step-by-step EXPLANATION:

please MARK me branliest pleasegidgida

6.

3. Find the value of x if (-6)^x+1 x (-6)^7= (-6)14.​

Answer»

ANSWER:

x = 6

Step-by-step EXPLANATION:

GIVEN, (-6)⁽ˣ⁺¹⁾ * (-6)⁷ = (-6)¹⁴

=>  (-6)ˣ⁺¹⁺⁷ = (-6)¹⁴

=> x+1+7 = 14

=> x + 8 = 14

=> x = 14-8

=> x = 6

7.

With the help Suitable diagram, cell cycle​

Answer»

Answer:

With the HELP SUITABLE DIAGRAM, cell cycle

8.

The next term in the sequence 1000, 100 , 10 , 1 is​

Answer»

Answer:

10000 if from FRONT and -10 if from BACK

9.

during tiffin of Scholl hours 1/4 part of drinking water of tank was used.another 1/3 part of water used when school get over.what part of water still left in tank​

Answer»

during tiffin of Scholl hours 1/4 part of drinking WATER of tank was USED.

water LEFT = 3/4

1/3 part of water used

(3/4) / 3 = 3/12 = 1/4

(3/4 ) - [(1x3) (3/4)] = 1/2

10.

Lf the angle of a quadrilateral are in the ratio 3:2:1:4 then what is the type of quadriteral​

Answer»

Answer:

TRAPEZOID

Step-by-step explanation:

because 4 ANGLES are not EQUAL.olny in trapezoid 4 are angles are not equal in some CASES

11.

Triangle XYZ with vertices X (1, 1), Y (3, 5), and Z (5, 1) will be rotated 180 degrees about the origin. What will be the coordinates of Y'?

Answer»

Step-by-step EXPLANATION:

will be ROTATED 180 DEGREES about the ORIGIN. What will be the

12.

If the number of workers in a factory is 256 the number of classes will be 9,10,8,12​

Answer»

ANSWER:

The QUESTION is incomplete

Step-by-step EXPLANATION:

13.

D)120. The arc length of a sector is 66 cmand the central angle is 30° . Find itsradius.​

Answer»

ANSWER:

Aaj elite SK sk sk sk wo this work woodwork Jakir show wow Woodall ei ei to ei EL do so so so so so so did FT GUYS but no no no sense

14.

16. If P= 5x4 - 3x + x2 - 5x + 10 and Q = -2x4 + 6x2 - 7x2 + 4x - 5, then find P-2Q​

Answer»

Answer:

क्या आप का मतलब यह था: 16. If P= 5 x 4 - 3x + x2 - 5X + 10 and Q = -2x4 + 6x2 - 7x2 + 4X - 5, the..

NCERT Solutions for Class 7 Math Chapter 12 - Algebraic Expressions

(iv) One-fourth of the product of NUMBERS p and q. ... 5. (b). − 4x + 5y. − 4x. 5y. − 4, x. 5, y. (c). 5y + 3y2. 5y. 3y2. 5, y. 3, y, y. (d) ... (v) 5x2y − 5x2 + 3yx2 − 3y2 + x2 − y2 + 8xy2 − 3y2.

such as x, y, z, l, m, n, p, a etc. ... To SOLVE an equation that contains a variable, find the value of the variable ... 12 is a solution of the equation 4x – 5 = 3x + 10. Solution: ... (c) 5x – 8 = x + 4.

22 पेज·4 एमबी

please like comment share thanks

15.

If the principal, number of years and rate of interest remains the same theninterest isthe compound interest.Less than(b) Less than or equal to(d) Greater than or equal to​

Answer»

Step-by-step EXPLANATION:

nnenenenenrnnrnrnjji

16.

Find two rational number between -2 and 5​

Answer»

ANSWER:

-1/1, 0/1

please MARK BRAINLIEST

17.

Round off each of the following numbers to the nearest 1000.(a) 54368 (b) 93685 (c) 184536 (d) 444444​

Answer»

ANSWER:

a)54000 b)94000 c)185000 d)440000

Step-by-step explanation:

For EXAMPLE, 125754

In 125754, the thousands period number is 5

before that, the HUNDREDS period is 7

its greater than 4

so, the number will change by adding 1 more

and rest of the numbers (hundreds, tens, ones) will TURN to 0

126000 is the answer

the same way, the above QUESTIONS are solved

hope this helps you

18.

8. Draw the graph of the line 4x + 3y = 24(1) Write the coordinates of the points where this line intersectsx-axis and the y-axis.(1) Use this graph to find the area of the triangle formed by the graph line and the coordinate axelis​

Answer»

It is given

4x+3y=24

We can also write it as

3y=24−4x

y=

3

24−4x

Substituting x=0 in the given EQUATION

y=

3

24−4(0)

So we get

y=

3

24

By division

y=8

Substituting x=3 in the given equation

y=

3

24−4(3)

So we get

y=

3

12

BY division

y=4

x 0 3

y 8 4

Now DRAW a graph using the POINTS A(0,8) and B (3,4)

Join the points AB through a LINE and extend in both the direction

(i) From the graph, we know that the line AB intersects at point C (6,0) on the X-axis and A(0,8) on the y-axis.

(ii) From the graph

area of the triangle = Area of △ADC

=

2

1

×b×h

=

2

1

×6×8

On further CALCULATION we get

Area of the triangle =24 sq.units

Didi plz mark as brainlist

19.

Find arithmetic mean median and mode of the data x=10,12,14,16,18,20,22 ,f=4,5,8,10,7,4,2​

Answer»

Step-by-step EXPLANATION:

MAKE ME a BRAINLEAST please and my name is Raghav ok BRO

20.

Peres2i.( (102) 2 - (98) expansion​

Answer»

ANSWER:

102 X 2= 204

204-98=106

the answer is 106

21.

3. Find the H.C.F of 217 and 686.​

Answer»

ANSWER:

The H. C. F of 217 and 686 is 7. HOPE it helps you.

Please mark me Brainliest.

22.

Genius user can answer ​

Answer»

Here is your ANSWER:-

Secθ + Tanθ = cosθ/ 1- sinθ

Hope this HELPS you ❤️

23.

The difference of the squares of two positive numbers is 45. The square of thesmaller number is four times the larger number. Find the numbers​

Answer»

Answer:

Given :

  • The DIFFERENCE of the squares of two POSITIVE numbers is 45
  • The square of the smaller number is four TIMES the larger number

To find :

  • Numbers

Solution :

  • Let the larger number be x
  • Let the smaller number be y

Given that , The differences of the squares of two positive numbers is 45 then ,

  • x² + y² = 45 is eq (1)

And also , the square of the smaller number is four times the larger number then

  • y² = 4x is eq(2)

According to Question, From eq (1) and eq (2) we get ,

》x² + y² = 45 + y² = 4x

》x² - 4x = 45

》x² - 4x - 45 = 0

》x² - (9 - 5) x - 45 = 0

Now by using factorization method we get,

》x² - 9x + 5x - 45 = 0

》x(x - 9) + 5(x - 9) = 0

》(x - 9) (x + 5) = 0

》x - 9 = 0 or x + 5 = 0

》x = - 9 , x = - 5

》x = 9

Now , putting the value in eq (2) we get,

》y² = 4x

》y² = 4(9)

》y² = 36

》 y = √36

》y = 6

Hence , 9 and 6 are the numbers

24.

If A and B be subsets of a set U, then prove that A B => B = A U (A' B).​

Answer»

Answer:We assume that A ⊆ B, and we will show DIRECTLY that. Bc ⊆ Ac. Since A ⊆ B, we know that for EVERY XU, if x ∈ A, then x ∈ B. Because we want to show that.

Step-by-step explanation:

25.

The solution of 4x-y=5 ​

Answer»

ANSWER:

To FIND the x-intercept, substitute in

0

0 for

y

y and SOLVE for

x

x. To find the y-intercept, substitute in

0

0 for

x

x and solve for

y

y.

x-intercept(s):

(

5

4

,

0

)

(54,0)

y-intercept(s):

(

0

,

5

)

(0,-5)

Step-by-step explanation:

HlOoo BRO

26.

&under addition property heThe properties ofcalculations easier.O commutativityO associativityO both​

Answer»

ANSWER:

under ADDITION PROPERTY both COMMUTATIVITY and ASSOCIATIVITY

27.

A) Fill in the blanks by proper word/number andcomplete the statements.1) 25% is equal to ​

Answer»

ANSWER:

50 is your answer BRO

28.

Splitting the middle term xpower2-3x+2​

Answer»

ANSWER:

{x}^{2}  - 2x  - x + 2

PLEASE MARK BRAINLIEST

29.

1) One of the two digits of atwo digit number is threetimes the other digit.If youinterchange the digits of thistwo digit number and add theresulting number to theoriginal number, you get88.What is the originalnumber?(3 marks)​

Answer»

ANSWER:

I don't KNOW

Step-by-step EXPLANATION:

I don't know

30.

Write the addictive inverse of -11/-25​

Answer»

Step-by-step EXPLANATION:

-(11/25)

ADDICTIVE inverse

11/25

31.

Simplify 2 2/3×2 1/3​

Answer»

Answer:

154/3.

MAKE a BRAINLIEST PLEASE

32.

Compare:  −4/ 3 or  8/ −7​

Answer»

Step-by-step EXPLANATION:

−4/ 3 <  8/ −7

-1.33. < -1.14

33.

Example of even function is​

Answer»

Answer:

2/4, 1/4

please MARK BRAINLIEST

34.

У^ - xу – бх^ = 0 find the acute angle between the Pair of line​

Answer»

ANSWER:

missing information

Step-by-step explanation:

in FORMATION about x and y is INCOMPLETE. So, impossible to determine ANGLE

35.

In the figure, if ∆CAB ~∆ FDE, find the values of M and n.​

Answer»

Step-by-step EXPLANATION:

where is FIGURE???????

36.

Simplify (3x+y)^3 - (3x-y)^3​

Answer»

ANSWER:

by EXPANDING the EQUATION we GET the answer

37.

In a housing society, people decided to do rainwater harvesting. Rainwater is collected inthe underground tank at the rate of 30 cm^ 3/s. Taking volume of water collected in x s asy cm ^ 3Based on the above information, answer the following questions : (Attempt any four)i) The linear equation formed on the basis of the above situation isa) y = 25b) y = xY y = 30xd) x + y = 25ii) The above linear equation in the standard form as ax + by + c = 0 isa) x + 2y + 30 = 0c) 30x – y + 0 = 0b) x + y + 25 = 0d) 0x + y - 25 = 0iii) The value of 'a' in the above isct 30d) -25a) 0b) 1iv) The value of 'b' in the question (ii)a) -1or 1v) The equation of the X axis isc) 2d) 30a) x=yb) x=0c) y = 0d) y = 1​

Answer»

ANSWER:

please mark me BRAINLIST and click on THANKS BUTTON

38.

Only MODERATORS will answer ​

Answer»

ANSWER is in the ATTACHMENT!

39.

N3 + (n + 1)3 + (n + 2)3 is always divisible by​

Answer»

Answer is nine (9).

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open sidebar

Class 12

MATHS

PRINCIPLE OF MATHEMATICAL

Shwo that

is divisible 9 for everynatural NUMBER n.

check-circle

Text Solution

Solution

Let

is divisible by 9.
When


=1+8+27
=36, which is divisible by 9.

is true.

is divisible by 9. (i)
To prove P(k+1) is true i.e.

is divisible by 9.




which is divisible by 9.
HENCE P(k+1) is true, WHENEVER P(k) is true.
From (a) and (b), it follows that P(n) is true for all natural number.

40.

12 is mean proportion of a & c then what are values of a and c​

Answer»

ANSWER:

hrhrhhrhrhrhrhrhrhrhhrhhhrhhrhhrrhhrhhrhrhrhrhhrhrhrhhrhrhrhrhhrhrhrhrhhrhrhrhrhhrhrhhrhrh

41.

SOLVE (D²+1)y = sinX.sin2X​

Answer»

this is your ANSWER THANK you for this QUESTION

42.

(-48) (-1) (3) * 0) (-4) =​

Answer»

Solution : 0

Direct approach : By just having a glance on the statement we can make out that the ANSWER WOULD be zero only because if zero is MULTIPLIED with any number it gives zero as a product .

Step by step instructions :

  • - 48 × - 1 × 3 × ( 0 )( - 4 )
  • 48 × 3 × ( 0 )( - 4 )
  • 48 × 3 × 0
  • 48 × 0
  • => 0
43.

At what of interest per year a sum of Rs 7200amount to Rs 9540 in 5 years?​

Answer»

Answer:

difference=9540-7200

=2340

so, weknow that INTEREST =Principal×time×RATE/100

and interest is 2340

so,2340=7200×5×rate/100

we GET, rate=(2340×100)/7200×5

rate=2340/360

rate=6.5

so, at the rate of 6.5%interest PER annum.

hope it helps you dear☺️☺️☺️

44.

Who is world richest person?????​

Answer»

Step-by-step EXPLANATION:

ELON MUSK IS THE RICHEST PERSON IN THE WORLD

45.

A) 3x + 2-0b)2x = -5y3) Find the volume of cone with radius = 6cm, height="7cm,4) a) Find the median of the data, 5.8.16.19.21​

Answer»

Answer:

a) 3X + 2-0

b)2x = -5y

3) Find the VOLUME of CONE with radius = 6cm, HEIGHT="7cm,

4) a) Find the median of the data, 5.8.16.19.21

46.

To pdaksh405,Oh My God!! It's horrific to hear and see your toe's condition TT.I'll pray to God for your bestest recovery and might your leg becomes as normal as it is before.Please immediately consult a doctor, so that a clot of blood can be made on your toe.​

Answer»

NO BRO AGAR CLOTH SE BANDHA TOH BAHUT DARD HOGA MUJE ISLIYE (┬┬_┬┬)

Love U bro

47.

What is the'X' value for 2X + 62 = 102 ? ​

Answer»

ANSWER:

x=20

Step-by-step explanation:

2x+62=102

2x=102-62

x=40/2

X=20

48.

What should be subtracted from -5/3 to get 5/6?​

Answer»

Step-by-step EXPLANATION:

-5/3-x=5/6

x=-5/3-5/6

x=-5/3(1+1/2)

x=-5/3(3/2)

x=-5/2

20 ❤ just

49.

When a vector is said to be a solenoidal​

Answer»

Answer:

When the divergence of a vector is zero, it is SAID to be SOLENOIDAL /divergent-free. EXPLANATION: By Maxwell's EQUATION, the MAGNETIC field intensity is solenoidal due to the absence of magnetic monopoles.

50.

5 X 3 =151. Nagma can swim 100 metres in 3 minutes 15 seconds and Lata in 2 minutes 55is faster and by how many seconds?​

Answer»

Answer:

\large\mathcal{\red{QUESTION :-}}

Nagma can swim 100 metres in 3 minutes 15 seconds and LATA in 2 minutes 55

is faster and by how many seconds?

\large\mathcal{\red{Answer :-}}

Velocity of man =25 m/min when no stream and 20 m/min when there is water flow of speed x m/min.

Hence, 25²- x² = 20

∴x=15 m/min=0.25 m/s