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.

Solve the following system of linear equations for x & y a^2x-b^2y=ab(a+b);ax-by=2ab​

Answer»

ANSWER:

:X&ya^2x-b^2y=ab(a+b);ax-by=2ab​

Step-by-step EXPLANATION:

2.

I need amount formula​

Answer»

Step-by-step explanation:

Use this simple INTEREST calculator to find A, the Final Investment Value, using the simple interest formula: A = P(1 + rt) where P is the PRINCIPAL amount of money to be invested at an Interest Rate R% per period for t Number of Time Periods. Where r is in decimal FORM; r=R/100; r and t are in the same units of time.

3.

Q.No.2: the 20th term of Arithmetic Progressionfrom ending is (a) (B) (c) (D)A.P.IS 22,25 28,31,-----------322​

Answer»

Answer:

265

Step-by-step EXPLANATION:

Here,

 Common difference = d = 28 - 25 = 25 - 22 = 3

From ending AP looks like:

     322...31, 28, 25, 22, and thus common difference becomes negative( now that is - 3 ).

 In APs nth term is GIVEN by a + ( n - 1 )d, where a is the first term and d is the common difference. From ending first term is 322 and common difference is - 3.

Therefore, 20th term from last:

 ⇒ 322 + ( 20 - 1 )( - 3 )

 ⇒ 322 + 19( - 3 )

 ⇒ 322 - 57

 ⇒ 265

4.

50 students enrolled them in 3 different software coaching classes..20 in 1st and 2nd types.30 members in 2nd and 3rd types.15 members in 1st and 3rd types.and 5 in 3rd type only..so how many of them enrolled in all the 3 types​

Answer»

ANSWER:

he should GIVE how many students are there in only first and second type

please follow me

5.

76) A4 + b4 - 7a2b2 factorise​

Answer»

\textbf{Given:}

a^4+b^4-7\,a^2b^2

\textbf{To <klux>FIND</klux>:}

\text{Factors of $a^4+b^4-7\,a^2b^2$}

\textbf{Solution:}

\text{Consider,}

=(a^2)^2+(b^2)^2-7\,a^2b^2

\text{Using the following identity}

\boxed{\bf(x+y)^2=x^2+y^2+2xy\implies\,x^2+y^2=(x+y)^2-2xy}

=(a^2+b^2)^2-2\,a^2b^2-7\,a^2b^2

=(a^2+b^2)^2-9\,a^2b^2

=(a^2+b^2)^2-(3\,ab)^2

\text{Using the following identity}

\boxed{\bf\,x^2-y^2=(x+y)(x-y)}

=(a^2+b^2+3ab)(a^2+b^2-3ab)

\therefore\boxed{\bf\,a^4+b^4-7\,a^2b^2=(a^2+b^2+3ab)(a^2+b^2-3ab)}

Find more:

1.X2-(a-1/a)x+1 FACTORISE the following

brainly.in/question/4301404#

2.Factorise x^4-(x-z)^4​

brainly.in/question/14993176

6.

Rounded off to nearst thousand of 9876​

Answer»

Answer:

10000...MARK as BRAINLIEST..

FOLLOW PLZ

7.

Which of the following is not a linear equation in one variable?A. 33B. 33(x+y)C. 33xD. 33y

Answer»

Answer:

33(x+y)

Step-by-step EXPLANATION:

PLZ MARK as BRAINLIEST

8.

Reno's mother is four time's as old as reno after 5 years her mother will be three times as old as she will then be find the present age?​

Answer»

Step-by-step explanation:

1

Secondary School Math 5 points

Renu's mother is 4 times as OLD as Renu. After 5 YEARS, her mother will be three times as old as she will be then. What are thuer PRESENT ages?

Ask for details Follow Report by 123123dev 03.08.2018

Answers

TooFree

TooFree Genius

Let Renu be x years old.

Mother = 4X

.

5 years later,

Renu = x + 5

Mother = 4x + 5

.

5 years later, mother will be 3 times as old as Renu:

4x + 5 = 3( x+ 5)

.

Solve x:

4x + 5 = 3( x+ 5)

4x + 5 = 3x + 15

x = 10

.

Find their present age:

Renu = x = 10

Mother = 4x = 4(10) = 40

.

Answer: Renus is 10 years old and her mother is 40 years old.

9.

Ex 4.3 sum no 5 of 9th class​

Answer»

Step-by-step EXPLANATION:

-  \frac{27}{8 }

HOPE hope you GOT your ANSWER

10.

For p(x) = ax2+bx+c then find 1/alpha2+ 1/beta2, alpha , beta are the zeros of p(x)​

Answer»

Answer:

LET ALPHA = A and BETA = B

a {x}^{2}  + bx \:  + c

So,

A + B = -b/c

A × B = c/a

1/A + 1/B

= A + B / AB

= -b/c ÷ c/a

= - b/c × a/c

= -ab / c^2

11.

If f(x)=3x+2 and g(x)=√2+5, then find (fog) (1)

Answer»

ANSWER:

i don't have the answer

12.

If f(x)=[x]-|x| and find the value of f(-50,5)

Answer»

ANSWER:

THE ANSWERS ARE

f(x) = —50

= [—50]—|—50|

=[50] —(50)

= [—50]—50

=—50—50

=—100

f(x) = 5

=[5] —|5|

= 5—5

= 0

Step-by-step explanation:

HOPE IT WILL HELP YOU

PLZZ MARK AS BRAINLIST

13.

1x² + xy-× -y factorise​

Answer»

Step-by-step EXPLANATION:

x²+xy-x-y=0

x(y-1)-y=0

x=y

and y=1 so x=1 here is the ANSWER OK FRIEND

14.

Solve:3/x+y + 11/x-y =104/x+y + 5/x-y=13

Answer»

rs 10800 for 3 years 12.5 PER ANNUM COMPOUNDED interest on

15.

Asin ^3x + bcos^3x = sinxcosx Then find a^2 + b^2 when asinx = bcosx

Answer»

Answer:

GIVEN asinx = bcosx ........(1)

asin^3x + bcos^3x = SINX.cosx

asinx sin^2x+bcos^3x=sinxcosx

bcosx sin^2x+bcos^3x=sinxcosx

bcosx(sin^2x+cos^2x) = sinx.cosx

bcosx.1 = sinx.cosx then

B = sinx

sinx = b substitue this in (1)

a.b = b cosx then

cosx = asubstitute sinx = b and cosx = a in

asin^3x+bcos^3x = sinx.cosx

a.b^3 + b.a^3 = a.b

ab(a^2+b^2) = ab thus

a^2+b^2 = 1

Thank you

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16.

Four bells ring at intervals of 3,7,12 and 14 seconds respectively. At what time will they ring together if they start ringing at 9 am​

Answer»

Answer:

1hr 24 minutes. Hope this helps! To find the answer, we need to find the LCM of 3, 7, 12, 14.

17.

Question of holiday homework answer please​

Answer»

ANSWER:WRITE on your own

Step-by-step EXPLANATION:

THANKS

18.

3. Raju says the sets (A-B) and (B - A) are two disjoint sets. Do you agree with Rajujustify your answer.​

Answer»

ANSWER:

yes..!

Step-by-step EXPLANATION:

yes because, if the INTERSECTION of those TWO sets is a null set or EMPTY set then the both are disjoint sets.

=> (A-B) intersection (B-A) = Pi

19.

Movయొక్క తూన్యములులు అయినం+p+apవిలువను కనుగొనుము..రెందు సంపూరక కోణాలలో పెద్ద కోణము చిన్నకోణమునకు రెట్టింపుగా కలదు. అయితే కోడాలు కనుగొనుము.ముందుమారుల---SECTION-1చనలు ఈ క్రింది ప్రశ్నలకు సమాధానములు రాయండి.24-114925 అయిన దీని యొక్క సమితి నిర్మాణరూపం వ్రాయండి.ఒక సామాన్లు ఉంచు గది ఎత్తు 5 మీ. మరియు ఆ గది నేల యొక్క చుట్టు కొలత 50 మీ. అయితే ఆగోడల వైశాల్యము కనుగొనుము.SECTION - II5.2-10Mలు:- ఈ క్రింది ప్రశ్నలకు సమాధానములు రాయండి.2. ప్రతి ప్రశ్నకు 2 మార్కులు​

Answer»

ANSWER:

PLEASE WRITE in HINDI or ENGLISH

20.

If 2 sin theta by 1 + cos theta + sin theta is equal to P then 1 - cos theta + sin theta by 1 + sin theta is equal to

Answer»

ANSWER:

HELLO BLAH blah blah blah hello PILLOW pillow pillow

21.

If x < y then x–1 < y–1

Answer»

YES it is CORRECT.

x - 1  < y - 1

22.

Write raditional number in decimal form 25/99

Answer»

Answer:

Answer:25/99 = 0.2525 = 25.25%.....hope it helps U DEAR....PLS mark me as brainliest..♥♥

23.

5(-1)-4(-1)2+3 find the value of polynomial

Answer»

Answer:

Step-by-step EXPLANATION:

-5×-4×2+3

40+3

43

I HOPE it will help you.

Please MARK me as brainliest.

24.

If y=(sin2x).(sin4x),find dy/dx?

Answer»

Step-by-step EXPLANATION:

dy/dx= sin2x.cos4x.4 + sin4x.cos2x.2

=4sin2x.cos4x + 2 sin4x.cos2x

make it as brainlaist ANSWER and FOLLOW me

25.

The zero of the polynomial f(x) = 2x+7

Answer»

ANSWER:

Step-by-step explanation:

2x+7=0

2x=7-0

2x=7

X=7/2

I HOPE it will HELP you.

Please MARK me as BRAINLIEST.

26.

Divide the difference of 19 and 4 by 3

Answer»

5

Step-by-step explanation:

19-4=15

15 by 3 =5

your ANSWER is 5

*HOPE THIS HELPS*

27.

The percentage of marks obtained by the students of a class in science are : 65,67,45,93,97,48,34,72,84,12,56,26,87. Find the mean.

Answer»

Answer:

87.....................

28.

Write 2 difference between collection and set

Answer»

Step-by-step explanation:

Set guarantees that the collection will CONTAIN unique elements (no duplicates). A Collection does not guarantee this. The Set interface CONTAINS only methods inherited from Collection and ADDS the restriction that duplicate elements are prohibited. ... Two Set INSTANCES are equal if they contain the same elements.

29.

Lcm of two mutually prime number

Answer»

Step-by-step EXPLANATION:

no LCM of PRIME NUMBERS

30.

A polynomial of degree n have at most n zeroes true orfalse

Answer»

ANSWER:

true

Step-by-step EXPLANATION:

31.

If p is a prime nos and p divides square then p does not divides (a)2k square(b) k (c)3k (d) none

Answer»

ANSWER:

BLAH blah blah blah HELLO hello hello hello

32.

An electric oven is listed at #195 .A shop sells the oven at a discount of 35% .Find the sale price

Answer»

ANSWER:

RS 126.75

Step-by-step EXPLANATION:

LIST price=195

discount=35%

SALE price=195-35/100*×195

=RS 126.75

33.

Insert six rational numbers between 5by6 and 8by9

Answer»

Step-by-step explanation:

the six rational NUMBER between 5 by 6 and 8 by 9 is 5 by 7 5 by 8 9 8 3 8 by 4 8 by 5 8 by 8 and 8 by 9 is your answer

34.

Don Felipe tiene 260dulces de fresa, 240 de coco 300 de naranja y 90 de vainilla ¿cuántos bolsas de dulces se pude realizar?? ¿con cuantos dulces??

Answer»

Step-by-step explanation:

Given Don Felipe tiene 260dulces de fresa, 240 de coco 300 de naranja y 90 de vainilla ¿cuántos bolsas de dulces se pude realizar?? ¿con cuantos dulces??

  • Given Don Felipe has 260 of strawberry sweets, 240 of coconut, 90 of vanilla and 300 of orange if all the sweets are distributed equally, how many BAGS of candy can be made? with how many sweets?
  •    So we need to find the highest common FACTOR or the greatest common divisor of 260,240,300 and 90.
  • So we need to find the factors of these numbers.
  • 260 = 2 x 2 x 5
  • 240 = 2 x 2 x 2 x 2 x 3 x 5
  • 300 = 2 x 2 x 3 x 5 x 5
  • 90 = 2 x 3 x 3 x 5
  • So the common factor among these will be 2 x 5 = 10
  • So the number of candy that can be made will be 10
  • So the candy per bag will be  
  • So strawberry = 260 / 10 = 26 per bag
  • So coconut = 240 / 10 = 24 per bag
  • 300 orange = 300 / 10 = 30 per bag
  • 90 vanilla = 90 / 10 = 9 per bag
  • So all these that is 26,24,30 and 9 will be for each bag and he has to MAKE 10 bags.

Reference link will be

https://brainly.lat/tarea/16511860

35.

For p(x) = x2-p(x+1)-c then find (alpha + 1) (beta +1) where alpha , beta are the zeros​

Answer»

hope it HELPS you.... THANKS

36.

The temperature of the fridge comparment of a refrigerator is set at 8°c . The freezer comparment is set at -10°c. What is the difference these temperature settings?

Answer»

ANSWER:

-18

Step-by-step EXPLANATION:

PLEASE MAKE me BRAINLIST

37.

4 4 4 4 8=100 how please solve

Answer»

Answer:

100

Step-by-step EXPLANATION:

(4+4+4)×(8)+4

=12×8+4

=96+4=100

38.

Find the largest number which divides 24 ,36 and 54 leaving remainder 5 in each case.

Answer»

ANSWER:

The smallest NUMBER divisible by all 24, 36, 54 is = 216

39.

Write 399/198 in simplest form ​

Answer»

2.015151515

Please MARK as BRAINLIEST and FOLLOW me and GIVE me a THANKS.

40.

Multiply:(2x+3y)(2x+3y)​

Answer»

Answer:

4x²+9y²+12xy

Step-by-step EXPLANATION:

41.

Question with steps​

Answer»

ANSWER:

KHUD KARLE be chutiye Google KAHE ke LIYE hai

42.

A hemispherical bowl of internal radius 90 is full of water. Its contents are emptied in acylinderical vessel of internal raidus 6 cm. Find the height of the water in the cylindericalvessel.​

Answer»

Answer:

VOLUME of hemispherical bowl = Volume of cylindrical vessel

Let h be the HEIGHT of water in cylindrical vessel.

2/3 Π r³= Πr²h

2/3*9*9*9= 6*6*h

2*3*81=36*h

6*81=36*h

486=36*h

h=486/36

h=13.5 cm

Therefore, height of water in cylindrical vessel is 13.5 cm.

Step-by-step explanation:

◆●Mark as brainliest answer.●◆

43.

The sides of right triangle are x=-1 ,x and x+1 then the sides are

Answer»

Step-by-step EXPLANATION:

the SIDES are 3 4 5

because (x-1)^2+x^2=(x+1)^2

x=4

x-1=3

x+1=5

44.

Q.No. 1 The value of K for whichKx² - 4.2+4=chas real andEqual root​

Answer»

ANSWER:

For real and EQUAL root D=0

√(-4)^2 -4.K.4 = 0

=> 16-16K = 0

=> K = 1

45.

Make a frequency distribution table of the data given. 48,34,42,30,15,26,34,34,26,34,30,26,42,48,42​

Answer»

Step-by-step EXPLANATION:

here is ur ANSWER BUDDY HOPE u have got the answer its simple

46.

1. Which term of the AP: 121, 117, 113,..., isits first negative term?[Hint: Find n for a

Answer»

Step-by-step EXPLANATION:

HOPE it will HELP you. THANKS

47.

Factors of x4 + y4 + x2y2​

Answer»

ANSWER:

WRITE QUESTION PROPERLY

48.

Solve (64)^1/2 plzz solve this​

Answer»

Answer:

8

Step-by-step EXPLANATION:

It is SQUARE ROOT of 64

Plz MARK BRAINLIEST

49.

44. भारत में निम्न ताप ऊष्मीय विलवणीकरण सिद्धान्त पर आधारित,प्रतिदिन एक लाख लीटर अलवण जल उत्पादन के लिए प्रथमविलवणीकरण संयंत्र कहां प्रारम्भ किया गया?(b) पोर्ट ब्लेयर(c) मंगलूर(d)बल्साड(a) कवरत्ती​

Answer»

Step-by-step EXPLANATION:

PLEASE TRANSLATE this QUESTION in ENGLISH.

50.

Q10. A pendulum completes 2 oscillations in 5 seconds. a) What is its time period? b)if g is equal to 9.8 metre per second square, find its length. ​

Answer»

Step-by-step EXPLANATION:

use the FORMULA

T=2pirootl/g u GET urs ANSWER perfectly