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.

Describe effect of plastic and environment?​

Answer»

{\bf{\red{\underline{Plastic\;have\;following\;harmful\;effects:-}}}}

★ Choking hazard if CONSUMED directly.

RELEASE toxic gases during production and on combustion.

★ Being non - biodegradable cause disposal problems.

★ Contain HAZARDOUS chemicals like BPA, PVC.

★ Burning of plastic also CAUSES AIR pollution.

★ Plastic bags can cause blocking in sewage lines.

2.

Which term of an A.p.16,11,6,....Is -54 ?

Answer»

Answer:15th TERM

Step-by-step explanation:

d = term 2 - term 1 = 11 - 16 = -5.

a (first term) = 16

The formula for A.P. is ;

SN = a + ( n - 1 ) d

where, Sn is the value of nth term ,i.e., -54.

Now , put the values of a , n and Sn in the formula.

      -54 = 16 + ( n - 1 ) (-5)

      - 70 = -5n + 5

       -75 = -5n

        n = 15

3.

Verify that -(-x) is the same as x for x =-31/21​

Answer»

X = -31/21

-(x) = -(-31/21)

-(-x) = -[-(-31/21)] = -31/21

4.

Riddle!!!If there are seventy cups, two cups fell down, 1 missing find the left out cupsno spmmrember riddle!! ​

Answer»

Answer:-

4 cups LEFT

Step-by-step explanation:

4 cups left because the reason 7 Tea cups not seventy cups remover this is a riddle so 7 tea cup hence SEVEN TWO cups FELL down and when one missing there will be 4 Tea cups.

Calculating:

(7 - 2) = 5 \\ (5 - 1) = 4 \\ or \\ (7 - 3) = 4

Hence the NUMBER of Tea cups left =4

5.

200 ka 45 persent kitna hoga​

Answer»

ANSWER:

90 is your answer .dude✔✔✔✔✔✔✔

6.

What is the cube of 135

Answer»

ANSWER:

The CUBED ROOT of ONE HUNDRED and thirty-five ∛135 = 5.1299278400301

7.

find the area of an isosceles triangle with two equal sides 5 cm each and the third side as 8 centimetre​

Answer»

ANSWER: the sides are 5cm,5cm and 8cm

using herons FORMULA we get root over of s(s-a)(s-b)(s-c)

s=semi-perimeter

s=5+5+8=18

root over of 18(18-5)(18-5)(18-8)

root over of 18(13)(13)(10)

13 root 180

Step-by-step EXPLANATION:

8.

Simplify (-2102)-(601)+(-2014)+(+604)​

Answer»

ANSWER:

-2102-601-2014+604

  1. -4113
9.

Solve the equation 10 X square + 15 x minus 6 x minus 9 is equals to zeroa not equal to zero​

Answer»

ANSWER:

10 {x}^{2}  + 15x - 6x - 9 = 0 \\ 5x(2x + 3) - 3(2x + 3) = 0 \\ (5x - 3)(2x + 3) = 0 \\ 5x -  3= 0 \:  \: and \:  \: 2x + 3 = 0 \\ x = 3 \div 5 \:  \:  \:  \:  \: and \:  \: x =  - 3 \div 2

10.

Using remainder theorem factorise the expression 2x^3+x^2-2x-1 completely​

Answer»

ANSWER:

MARK BRAINLIEST FOLLOW me

11.

Project on one of the great mathematician of ancient mathematics​

Answer»

Answer:

Make the project either about Albert EINSTEIN or Aryabhatta , and also DESCRIBE their most crucial ROLE PLAYED in the field of mathematics. For example Aryabhatta discovered zero which is the most important NUMBER in the decimal number system

12.

Check whether the following are polynomials or not. Give reason1) 1/root7x^3/2-12)1/5x^-2+5x+7

Answer»

these POLYNOMIAL are TRUE

13.

3x-5y =57x=8y=9 find the solution

Answer»

ANSWER:

Step-by-step EXPLANATION:

14.

Some children are standing in a row . Akhil is sixth from the left as well as from right . How many children are there in q row ?

Answer»

ANSWER:

Step-by-step explanation:

11 CHILDREN

Leave out 5 children from both left and RIGHT and Akhil will be standing at 6th place from both SIDES.

15.

Formula to find the greatest integer that divide( p^4 )-1

Answer»

ANSWER:

p²+1²

Step-by-step EXPLANATION:

p⁴-1⁴=(p²-1²)(p²+1²)

=(p-1)(p+1)(p²+1²)

here the LARGEST POSSIBLE FACTOR is p²+1

16.

Formulla for curved surface area and total surface are

Answer»

Answer:

I hope this will help you

Step-by-step EXPLANATION:

of a hemisphere = 2πr2 and Curved Surface area of the cone = πrl. So,

The Total Surface Area of Ice-cream Cone = 2πr2 + πrl

Let’s take another example of a TENT. In a tent we see two structures, one is the cone while the other is a cylinder. To Calculate the Total Surface Area of the tent we calculate the individual surface areas of shapes constituting the tent’s structure. Hence, Total Surface Area of a tent house = Curved Surface Area of the cone + Curved Surface Area of the cylinder = πrl + 2πrh.

Volumes of Composite Shapes

When we want to find the volume of a container we intend to calculate the capacity it can hold. While finding the volume of composite shapes we calculate the capacity of that structure if its hollow. But if its a concrete structure then the calculation for volume is done just to get an IDEA of the density of that structure.

For finding the volume of combined solids we follow the same level of calculation as we did in the surface area of a composite solid shape. So let’s find the volume of a capsule container on a truck carrying petroleum:

The capsule-shaped container LOADED on a truck is a combination of a cylinder with adjoined hemispheres on both sides. Now, when we find the volume of this capsule-shaped container we add the individual volumes of all the constituting shapes. So, in this case, we add the individual volumes of 2 hemispheres and one cylinder.

The volume of a capsule container= Volume of hemisphere + Volume of Cylinder + Volume of Hemisphere = 2/3πr3 + πr2h + 2/3πr3 . This method of finding volumes of combined shapes is used in all types of composite shapes.

Formulae for Various Shapes

Surface Areas

The surface area of various solid shapes are given below:

Cuboid: 2(lb+bh+hl), where l, b and h are the length, breadth and height of a cuboid.

Cube: 6a2, a is the side of the cube.

Cylinder: 2πr (r+h), r is the radius of circular base and h is the height of the cylinder.

Cone: πr(l+r), r is the radius of the circular base, l is the SLANT height of the cone.

Sphere: 4πr2, r is the radius of the sphere.

Hemisphere: 3πr2, r is the radius of the hemisphere.

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17.

Additive inverse of - 23 is ​

Answer»

23

-----------------

FOLLOW me!!!

18.

Derivative of logx base e​

Answer»

Answer:

1/x is the derivative

i HOPE U GOT it

19.

X^2 - 2✓5x + 3 Find the factors of this​

Answer»

Step-by-step explanation:

this QUESTION SOLVE by the quadratic formula which is also known as sridharacharya formula

20.

Are there infinite factors of a number​

Answer»

ANSWER:

no there are FINITE FACTORS of a number but MULTIPLE of a number is INFINITE.

21.

Using remainder theorem factorise the expression2x^3+x^2​

Answer»

ANSWER:

here is the answer X= 0 and -1/2

22.

What is a rounding number of 3284​

Answer»

Answer:

2142 is a ROUNDING NUMBER

23.

Q.9In the equations 3x + 2y = 13xy and 4x - 5y =2xy, the values of x and y that satisfy theequations are -[NTSE-2017)(A) (2, 3)(B) (3, 2)(c) ( 1\2,1\3)​

Answer»

Step-by-step EXPLANATION:

hope it helps

mark as brainliest

24.

Solutionof 24/30*(-6/8*(50/48)​

Answer»

ANSWER:

answer is -5/6

Step-by-step EXPLANATION:

24/30×(-6/8×50/48)

24/30 × (- 300/384)

1/1 × (-10/12)

-10/12

-5/6

25.

– 2 – 36x -19, 2x - 11​

Answer»

ANSWER:

you can SOLVE this by FOLLOWING FORMULA

26.

What is the rounding number of 3284​

Answer»

ANSWER:

the rounded number of 3284 is 3300. This is because 84 is nearly to the number 100 and rounded means converting of number to their nearest number. So the number 84 will CONVERT into 100 because it is nearest to this number. It means that 3000+200+100=3300

27.

If x is equal to 9 plus 4√5 then find √x plus 1 by√x​

Answer»

ANSWER:

x =  9  \:  \:  +  \:  \:   4 \sqrt{5}  \\ then \\    \frac{ \sqrt{x + 1}}{ \sqrt{x} }  = 1 +  \frac{1}{ \sqrt{x} }  = 1 +   \frac{1}{ \sqrt{9 + 4 \sqrt{5} } }

28.

Write all the formulas of geometry ​

Answer»

ANSWER:

AREA, VOLUME, PERIMETER

29.

Hey friendsplease solve this questionI will surely mark brainlist​

Answer»

ANSWER is 15.

heya MATE there's your answer

hope it HELPS you

THANK you

30.

VERY SMALL QUESTION . PLEASE SOLVE AND EXPLAIN BY WRITING HOW IT HAS TO BE DONE....

Answer»

ANSWER:

PLEASE MARK brainliest

Step-by-step explanation:

10×10⁴-5×10⁴/10⁴=10×10000-5×10000/10000=10×5=50

31.

Derivative of log ex​

Answer»

REFER the ATTACHMENT for your ANSWER....

32.

10 2tan 30°10. 1-tan30°n: 11​

Answer»

ANSWER:

2 \tan(30)  = 2 \frac{1}{ \sqrt{3} }

=  \frac{2}{ \sqrt{3} }

1 -  \tan(30)  = 1 -   \frac{1}{ \sqrt{3} }

\frac{ \sqrt{3 - 1} }{ \sqrt{3} }

Hope it MAY HELP you

33.

Find the region when the following equation x+y>=0 , 2x+y=0 , y

Answer»

Answer:

5*,564694949465=!6'5655":*'*==6,8,8,98659,5,5,595,5,8,8

34.

Simplify the following 3+-3/2​

Answer»

Answer:3/2

Step-by-step EXPLANATION:

FIRST simplify

3+-3/2

=3-3/2

=6/2-3/2=3/2

35.

How to solve these problems​

Answer»

here is your ANSWER MATE

#FOLLOW me#

36.

What number should be subtracted from the sum of -5/12 and 2/3to get 5/4​ please answer it fastwhoever will give the meaning full answer will be marked as brainliest answer

Answer»

Answer:

3/2.... CHECK the ATTACHMENT

37.

A fraction become 1/4 when 2 is subtracted from the numerator and 3 is added in denominator ​

Answer»

ANSWER:

it is 1-2/4+3

that is 1/7

Step-by-step EXPLANATION:

38.

Friends please answer my question. What is middle term splitting in factorisation?​

Answer»

Answer:

FACTORIZATION main theme is to split given expression as the product of some VARIABLES or MONOMIALS...

if we one example

x^2+5x+6

if 5x split as 4x+x there is no use..

by splitting 5x as 2x and 3x only the factors may get...

here we should compare the product of (x^2 term and constant term )

here 1 and 6...so we can Assume splitting TERMS product is equal to the x^2 term and constant term

x^2+3x+2x+6

x(x+3)+2(x+3)

here we get common factor (x+3)

then only we can write as ..

(x+3)(x+2)

...if we split 6x as 5x and x we can't get like above...

hope ig helps you

39.

One truck can carry 950 bags of yeast. how many trucks are needed to carry 85500 bags of yeast​

Answer»

ANSWER:

PLEASE MARK brainliest

Step-by-step explanation:

1truck= 950bags

trucks for85500bags=85500÷950=90trucks

40.

Find the total area of 14 squeres whose sides are 11cm,12cm,13cm...24cm respectively

Answer»

Answer: 4515 cm^2

to FIND the TOTAL area of 14 squares we apply the formula for the sum of n natural  NOS. which{n(n+1)(2n+1)/6} which gives the sum of squares.

now to find the area we find the squares of nos from 1 to 24 and the subtract the sum of squares of nos from 1 to 10

so the total area= (24 x 25 x 49)/6 - (10 x 11 x 21)/6

                          =4900-385 = 4515 cm²

Read more on Brainly.in - brainly.in/question/5477580#readmore

41.

ABllCDllEF andPQllRs LRQD=25 and LCQP=60 find LQRS

Answer»

Here, Angle RQD = 25°

  so, angle ARQ = 25° .           (Alt. INTERIOR angles)

Angle CQP = 60°

Angle QPE = 180° - 60° = 120° .       (Sum of co-interior angles = 180°)

Give, PQ||RS

THEREFORE, Angle QPE = Angle ARS = 120° .   (Same angles on a parallel line)

Therefore, Angle QRS

= Angle ARQ + Angle ARS

= 25° + 120°

= 145°

                             

42.

A man tossed two dice. What is the probability that the total score is a prime number

Answer»

Answer:

Step-by-step explanation:

Total NUMBER of possible outcomes = 36

Number of FAVOURABLE outcomes =14

P(E) = 14/36 = 7/18

Hope it helps......

Mark as BRAINLIEST [email protected]@

43.

Find d least no of six digits vich is a perfect square

Answer»

Answer:

100489 = 317^2

100489 is the LEAST 6 DIGIT which is a PERFECT SQUARE

44.

Find the product using suitable property 1455×786-455×786

Answer»

Step-by-step EXPLANATION:

=786(1455-455)

=786 × 1000

=786000

45.

Find the other zeros of a polynomial if the two zeroes are

Answer»

QUESTION INCOMPLETE.... COMPLETE and SEND it

46.

Three consecutive positive integers are taken such that the sum of the square of the first and the product of the other two is 154. Find the integers.​

Answer»

x,  x+1  and x+2

According to question

x^2+(x+1)(x+2)=154\\\\x^2+x(x+2)+1(x+2)=154\\\\x^2+x^2+2x+x+2=154\\\\2x^2+2x+x+2=154\\\\2x^2+3x+2=154\\\\2x^2+3x+2-154=0\\\\2x^2+3x-152=0\\\\2x^2+19x-16x-152=0\\\\x(2x+19)-8(2x+19)=0\\\\(2x+19)\:(x-8)\\\\\\2x+19=0\\\\2x=-19\\\\x=-\dfrac{19}{2}\:\bigg(x\neq\dfrac{-19}{2}\bigg)\\\\\\x-8=0\\\\x=8\:\bigg(x=8\bigg)

Here we get 'x' = 8

Now we put the value of 'x' we get,

First consecutive = x = 8

Second consecutive = x + 1 = 8 + 1 = 9

Third consecutive = x + 2 = 8 + 2 = 10

Therefore THREE consecutive POSITIVE INTEGERS are 8, 9 and 10

47.

Simplify (2p+q)(p-2q+3r)-(p-3q)(-3p+q-2r) ​

Answer»

ANSWER:

Step-by-step EXPLANATION:

(2p+q)(p-2q+3r)-(p-3q)(-3p+q-2r)

(2p²-4pq+6pr+pq-2q²+3qr)-(-3p²+pq -2pr+9pq-3q²+6qr

2p²-2q²-3pq+6pr+3qr+3p²-10pq+2pr-6qr+3q²

5p²+q²-13pq+8pr+9qr

HOPE THIS IS TRUE AND HELPFUL TO YOU

48.

List five objects that can be recycled and reused. Note their shape. Classify thenas 2D or 3D. Find the formulae to calculate the area and perimeter of 2D shapes​

Answer»

Answer:

"Most of the things AROUND US can be recycled. Therefore, some of the VARIOUS objects that can be recycled are list below:

Paper , can be of any shape, 2D

Plastic ,can be of any shape, both 2D and 3D

Rubber ,can be of any shape, both 2D and 3D

Cardboard , can be of any shape, both 2D and 3D

hope it HELPS mark my answer BRAINIEST. and follow me

49.

Simplify the following using suitable identity(a+b)(a-b)(a^2-ab+b^2)(a^2+ab+b^2)Its Urgent give me full solution i will mark it as the brainliest ​

Answer»

ANSWER:

(a^3+b^3)(a^3-b^3)

and MULTIPLY this

50.

Deepak is fifth from the right and thirteenth from the left in a rowof boys. how many boys are there in the row​

Answer»

ANSWER:

exepting DEEPAK 18

without exepting deepak 17

mark me as the BRAINLIEST