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.

Arithmetic mean______ is by change of orion and scale of measurements​

Answer»

Arithmetic MEAN is AFFECTED by CHANGE of origin and SCALE of measurement.

2.

Multiply in column form

Answer»

ANSWER:

Answer :-7p² , 23pq , 7q²

3.

How 189 come in the equation 79/15 + x = 63/5​

Answer»

ANSWER:

x=63/5-79/15

x=189-79/15

x=110/15

x=22/3

4.

6. Calculate the median of the followingfrequency distributionFrequencyclass-imten Frequeno cumulative2282120-10 e10-2020-3030-4040-50so-602237anom4 7350na 50​

Answer»

ANSWER:

fhdsfkkfsdhkgdafhgkfsshjvj

Step-by-step EXPLANATION:

succumbing

cliff

knock

mmbcdh

5.

Simplify (a+b)² + (a-b)²​

Answer»

I have USED their IDENTITIES
HOPE it HELPS U!

6.

See the photo here ab=ba and a+b=b+aIt is commutative property​

Answer»

Answer:

Yes you are 100 and 10 percent correct

Step-by-step EXPLANATION:

The commutative property states that the NUMBERS on which we OPERATE can be moved or SWAPPED from their position without making any DIFFERENCE to the answer. The property holds for Addition and Multiplication, but not for subtraction and division

7.

1.93 ÷ 3 answer fast​

Answer»

Answer:

1.93 ÷ 3 = 64.3333333333

8.

15)The solution of y/5 = 10is​

Answer»

ANSWER:

\frac{y}{5 }  = 10

y = 5 \times 10 \\ y = 50

i HOPE it helped u

pls MRK me as brainliest

and follo me

9.

5^3-3(9/4)*5 solve it ​

Answer» PLZ MARK me as BRILLIANT
10.

In x-10=15 , solution of equation is x= (-5). true or false​

Answer»

Answer:

FALSE.

Step-by-step explanation:

ACCORDING TO THE QUESTION,,

X - 10 = 15.

; x = 15 + 10.

; x = 25.

HOPE IT WILL BE HELPFUL

11.

P(x) = 2x3 +4x2-5 g (x) =x+3​

Answer»

Step-by-step EXPLANATION:

this is not a.complete QUESTION ⁉️⁉️

12.

Solve thispleaseplease​

Answer»

ANSWER:

HOPE THIS ANSWER HELPS YOU

MARK ME AS BRAINLIST

13.

14)The quadrilateral whosediagonals are perpendicular toeach other is* *​

Answer»

Step-by-step EXPLANATION:

If the DIAGONALS of a PARALLELOGRAM are PERPENDICULAR, then it is a RHOMBUS

14.

Evaluate (-1/4)-³÷(3/8)-²​

Answer»

Answer:

evaluate (-1/4)-³÷(3/8)-²

here is UR Ans Ami have a bangtanic DAY purple u plz FOLO me if u want

15.

By travelling at a speed of 48km/hr.A car can finish a certain journey in 10 hours.To cover the same distance in 8 hours ,the speed of the car should be *​

Answer»

Step-by-step explanation:

by choosing a COUPLE of values for X,−1,0,1

calculate the CORRESPONDING y values.

x −1 0 1

y 1 3 5

16.

*Diagonals of a parallelogram are perpendicular bisectors of each other' This statement is true or false?*1️⃣ True2️⃣ False

Answer»

Step-by-step EXPLANATION:

{\pink{▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂}}

17.

determine that after how many digits the decimal expansion of following terminate ? 1) 13/2^5×5^3 2) 27/2^4×3^2×5^7 ​

Answer»

Step-by-step EXPLANATION:

esc-grmj-mbi joín fôr fùn çhat fàst

18.

Total surface area of cube having sides 0.4 metre is---9.6 square metre6.9 square metre0.69 square metre0.96 square metre​

Answer»
19.

Find the LCM of (x^2– 4) and (x^2– 16)PLS ANSWER

Answer»

LCM if the QUESTION is

x^2-16

20.

Anybody can give me schand class 8 maths today icse

Answer»

Answer:

sorry my board is NCERT and SCHOOL is army public school ALMORA sorry for that and by the WAY i am also in CLASS 8

21.

Dash is multiplicative inverse of -1​

Answer»

ANSWER:

the answer of the QUESTION is 1

22.

If two quantities p and q vary inversely with each other, then *​

Answer»

I HOPE you UNDERSTAND THANKS

23.

12)The solution of the equation3x + 4 = 13 is__​

Answer»

ANSWER:

X = 3.

Step-by-step explanation:

3x + 4 = 13.

: 3x = 13 - 4.

: 3x = 9.

: x = 9/3.

: x = 3.

24.

If 1/(a+1)+1/(b+1)+1/(c+1)=2 then a^2+b^2+c^2

Answer»

Answer:

WRITE U = 1/a, v = 1/b, W = 1/c. Then 1/(a+b+c) = 1/(1/u + 1/v + 1/w) = uvw/(vw + UW + uv).

Step-by-step explanation:

1/a+1/b+1/c=1/(a+b+c)

or (a+b+c)(ab+bc+ca)

from this equation I can write, (a+b)^2+(b+c)^2+(c+a)^2=0

25.

1.999 (bar on 9) p/q form​

Answer»

CORRECT QUESTION

Express 1.999 in the form of p/q where q≠0

CORRECT SOLUTION

Let x = 1.9999 ﹍﹍(Ⅰ)

Then ,

10 x = 19.9999 ﹍﹍(Ⅱ)

Substracting EQUATION (Ⅰ) from (Ⅱ)

10x = 19.9999

x = 1.9999

━━━━━━━━━

9X = 18

━━━━━━━━━

So , 9x = 18

x = 18/9

x = 2

∴ x = 1.999﹍﹍ = 2

Now , we can represent 2 in p/q form as 2/1 ALSO q≠0 !

26.

11)The perimeter of aparallelogram whose parallelsides have lengths equal to 12cm and 7 cm is*​

Answer»

ANSWER:

PRIMETER of parallelogram=2(a+B)

(a and b are parallel lines)

=2(12+7)

=2(19)

=38cm

hope it helps you dear☺️☺️☺️

27.

If n is an odd positive integer then the value of 1 + i raised to 2n + i raised to 4n +i raised to 6n is​

Answer»

Answer:

gghbjkiuyt it AJ k 6 it was not the named recipient or have to is ek din KI avulad it was the only WAY home now it was not a safe and HAPPY holidays or kis

28.

Find four rational number between 3/4 and 4/5 ​

Answer»

Answer:

76/100 ,77/100,78/100,79/100

29.

Find the product using distributive property 231×21​

Answer»

Step-by-step EXPLANATION:

HOPE this ANSWER HELPS you

30.

A Poisson variate has standard deviations 3 then P1 is equal to​

Answer»

Answer:

3*100 is your BEST answer PLEASE do it yourself and TAKES your solution

31.

. Moving average elimination *a. Trendb. seasonal variablec. Random variationd. cyclical variation​

Answer»

ANSWER:

  • Secular trend, which DESCRIBE the movement along the term;
  • Seasonal VARIATIONS, which represent seasonal changes;
  • Cyclical fluctuations, which CORRESPOND to periodical but not seasonal variations;
  • Irregular variations, which are other nonrandom SOURCES of variations of series.
32.

The name of the vertical line in the cartesianplane which detesmines the position of a point is called​

Answer»

ANSWER:

The vertical line that is drawn to determine the POSITION of any point in the CARTESIAN plane is called as y− axis. ... (III) The point, where the x− axis and the y− axis INTERSECT is called as origin (O).

33.

If sin θ = 12find the values of cos θ 13​

Answer»

<P>TRIGONOMETRY- The branch of Mathematics which helps in dealing with measure of three sides of a right-angled triangle is called Trigonometry.

Trigonometric Ratios:

SIN θ = Perpendicular/Hypotenuse

COS θ = Base/Hypotenuse

tan θ = Perpendicular/Base

cosec θ = Hypotenuse/Perpendicular

sec θ = Hypotenuse/Base

cot θ = Base/Perpendicular

Also, tan θ = sin θ/cos θ and cot θ = cos θ/sinθ

Given: sin θ = 12/13

To find: cos θ and tan θ

Solution: sin θ = 12/13

In a right-angled triangle, sin θ = 12/13

Perpendicular (P)/ Hypotenuse (H) = 12/13

⇒ Let P = 12k and H = 13k

By using Pythagoras THEOREM, H² = P² + B²

(13k)² = (12k)² + B²

169k² = 144k² + B²

B² = 25k²

B = 5k

Now, cos θ = Base/Hypotenuse

cos θ = 5k/13k

∴ cos θ = 5/13

tan θ = sin θ/cos θ

tan θ = 12/13 × 13/5

∴ tan θ = 12/5

34.

Factorise ; 2x³ + y³ + 8z³ – 2√ xy + 4√ yz – 8xz

Answer»

Answer:

GIVEN

2X2 + Y2 + 8Z2 - 2√(2xy) + 4√(2yz) - 8xz

= (-√2x)2 + y2 + {2√(2z)}2 - 2{(-√2x)*y} + 2y*{2√(2z)} + 2*(-√2x)*{2√(2z)}

= {-√2x + y + 2√(2z)}2

= {-√2x + y + 2√(2z)}*{-√2x + y + 2√(2z)}

ANSWERED on: 2016/12/30 by ExamFear Share on Facebook Share of TwitterReport Abuse

35.

Eill the absolute value of the National numberlb -5 0 5 (6) -4 ng1-429- 79서idig3-412​

Answer»

ANSWER:

I WANT to my ACCOUNT PRO FORYOU

36.

Sin 20°.sin40°.sin80° = √3/8​

Answer»

Step-by-step explanation:

To Prove :-

sin20°.sin40°.sin80° = \sf\dfrac{\sqrt{3}}{8}

SOLUTION :-

Taking L.H.S :-

sin20°.sin40°.sin80°

Multiplying and Dividing with '2' :-

= \sf\dfrac{2}{2}\times sin20°.sin40°.sin80°

=

\dfrac{1}{2}(2 \times sin20 \degree \times sin40 \degree \times (sin80 \degree))

We KNOW that :-

cos(A-B)-cos(A+B) = 2sinAsinB

=  \dfrac{1}{2}((cos(40 \degree - 20 \degree) - cos(40 \degree + 20 \degree) ) \times sin80 \degree)

= \dfrac{1}{2} ((cos20 \degree - cos60 \degree) \times sin80 \degree)

= \dfrac{1}{2} ((cos20 \degree -  \dfrac{1}{2} ) \times sin80 \degree)

=  \dfrac{1}{2}  \bigg( \dfrac{2cos20 \degree - 1}{2} \bigg) \times sin80 \degree

= \dfrac{1}{4}((2cos20 \degree  - 1) \times sin80 \degree)

=  \dfrac{1}{4}((2cos20 \degree \times sin80 \degree ) - sin80 \degree)

we know that :-

sin(A+B)-sin(A-B) = 2cosAsinB

=  \dfrac{1}{4}(sin100 \degree  +  sin60 \degree - sin80 \degree )

\dfrac{1}{4}(sin100 \degree   -  sin80 \degree +  sin60 \degree  )

=  \dfrac{1}{4}((2cos90 \degree \times sin20 \degree) +  \dfrac{ \sqrt{3} }{2}  )

=  \dfrac{1}{4}  \times  \dfrac{ \sqrt{3} }{2}

Since , cos90° = 0

=  \dfrac{ \sqrt{3} }{8}

37.

Cosec A - sin A = p and sec A - cos A = q; Prove that p^2Q^2(p^2 + q^2 + 3) = 1

Answer»

Answer:

COSEC A - sin A = p and sec A - COS A = q; PROVE that p^2Q^2(p^2 + q^2 + 3) = 1

38.

Anybody here from jyoti niketan school azamgarh can give me class 8 books

Answer»

ANSWER:

NAH

Step-by-step EXPLANATION:

I DON'T HAVE

BYE

NEXT QUESTION.

39.

L and mare two parallel lines intersected by anotherpair of parallel Linee P Рshow that ABC SCOA​

Answer»

Answer:

Given : l∥m

TRANSVERSAL p intersects l & m at A & C RESPECTIVELY. Bisector of ∠ PAC & ∠ QCA meet at B. And, bisector of ∠ SAC & ∠ RCA meet at D.

To prove : ABCD is a rectangle.

Proof :

We know that a rectangle is a parallelogram with one ANGLE 90

o

.

For l∥m and transversal p

∠PAC=∠ACR

So,

2

1

∠PAC=

2

1

∠ACR

So, ∠BAC=∠ACD

For LINES AB and DC with AC as transversal ∠BAC & ∠ACD are alternate angles, and they are equal.

So, AB∥DC.

Similarly, for lines BC & AD, with AC as transversal ∠BAC & ∠ACD are alternate angles, and they are equal.

So, BC∥AD.

Now, In ABCD,

AB∥DC & BC∥AD

As both pair of opposite sides are parallel, ABCD is a parallelogram.

Also, for line l,

∠PAC+∠CAS=180

o

2

1

∠PAC+

2

1

∠CAS=90

o

∠BAC+∠CAD=90

o

∠BAD=90

o

.

So, ABCD is a parallelogram in which one angle is 90

o

.

Hence, ABCD is a rectangle.

solution

Expand-image

40.

If (0,a) is a Solution of 8x-y=34 then a=​

Answer»

Step-by-step EXPLANATION:

(0,a) MEANS X= 0 ,y= a

8x-y= 34

8×0-a=34

O - a= 34

-a= 34

means a=-34

41.

If 1/(a+1)+1/(b+1)+1/(c+1) =2 then a^2+b^2+c^2

Answer»

ANSWER:

FORYOU pa my account PROFILE viral

42.

8. Which number is exactly divisible by(A) 5,550(B) 3.134(C) 4,621(D) 4,624​

Answer»

5,550 is DIVISIBLE by 2

I HOPE I am RIGHT

43.

Given : In A ABC, ZBAC = 90°, AD I BCwhere B-D-C andDE I AB where A-E-B.Prove that : AE X AB = BD x DC​

Answer»

Step-by-step EXPLANATION:

For explanation PLS CHECK the PIC above

44.

2. Simplify(i) [(2)-1+ (4)-1+ (3)-1]-1​

Answer»

ANSWER:

5

this is your answer:

CHECK it out

45.

If α=2/3 and β=-1/2, find the quadratic polynomial.

Answer»

I have used the basic form of quadratic EQUATION and the FORMULA for SUM and product of roots.
Hope it helps U:)

46.

11) The perimeter of aparallelogram whose parallelsides have lengths equal to 12cm and 7 cm is​

Answer»

Given for a PARALLELOGRAM parallel   sides have lengths equal to 12

cm and 7 cm.

PERIMETER of parallelogram = 2( sum of the parallel sides)

= Perimeter = 2 ( 12 +7 ) = 2 X 19

                                         

                                        = 38 cm

Mark as brainliest if it helped:D

47.

Write each of the rational numbers 1/-4 -5/-7 4/-5 with positives denominator 1

Answer»

ANSWER:

-1/4, 5/7, -4/5

Step-by-step EXPLANATION:

hi

this is the answer

i am sure its right

hope it helps u

pls mark me the BRAINLIEST

48.

The common factor of 9ab and 3cd is *​

Answer»

Answer:

3

Step-by-step EXPLANATION:

THANKS PLS MARK BRAINLIEST

49.

GaathiDate7.FOR what value of K. The pair of linear equation 3x+y=3and 6x+ky=8 does not have a solution​

Answer»

Step-by-step EXPLANATION:

for no SOLUTION

3/6=1/k

3k=6

k=2

50.

Who is dangerous bowler in IPL​

Answer»

ANSWER:

EITHER you or someone ELSE

Step-by-step explanation:

Such an ODD question