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.

The perimeter of a rectangular sheet is 100 cm. If the length is 35 cm, find its breadth. Also find the area.​

Answer»

Solution:

GIVEN:

Perimeter of rectangular SHEET = 100 cm

Length = 35 cm

We know,

Perimeter of RECTANGLE = 2(Length + Breadth)

So,

2(Length + Breadth) = 100

( 35 + Breadth) = \dfrac{100}{2}

35 + Breadth = 50

Breadth = 50 - 35 = 15 cm

Area of rectangular sheet = Length × Breadth

= 35 × 15

= 525 cm^{2}

THEREFORE,

Breadth = 15 cm

Area = \bold{525 cm^{2}}

2.

Find the HCF and LCM of 160,180 and 200 by prime factorisation​

Answer»

Answer:

20

Step-by-step EXPLANATION:

3.

Find the zeroes of the polynomial

Answer»

Answer:

Z^2 - 8

= z^2 - (2√2)^2

Using a^2 - b^2 = (a+b) (a-b)

z^2 - (2√2)^2 = 0

=> (z - 22) (z + 22) = 0

Therefore, (z - 2√2) = 0 OR

(z + 2√2) = 0

So, z = 22 or (-22).

Hope it will HELP you.

4.

4,2=36 3,7=100 5,4=81 1,6=?​

Answer»

ANSWER:

the answer is 49. 1,6=(1+6)^2=49

5.

How to solve it ...................​

Answer»

ANSWER:

CORRECT answer is OPTION NUMBER D

6.

धातु की एक चादर से 1 m ऊँची और 140 cm व्यास के आधार वाली एक बंद बेलनाकार टंकी बनाई जानी है। इस कार्य के लिए कितने वर्ग मीटर चादर की आवश्यकता होगी?

Answer»

Answer:

एक बंद बेलनाकार टंकी को बनाने के लिए आवश्यक धातु की चादर = 7.48 मी²

Step-by-step explanation:

माना बेलनाकार टंकी की त्रिज्या तथा ऊंचाई क्रमशः R तथा h है।

दिया है :  

बेलनाकार टंकी का व्यास = 140 मी

बेलनाकार टंकी की त्रिज्या, r = 140/2 = 70 सेमी = 70/100 = 0.70 मी

[1सेमी = 1/100 मी]

बेलनाकार टंकी की ऊंचाई , h = 1 मी

एक बंद बेलनाकार टंकी को बनाने के लिए आवश्यक धातु की चादर = संपूर्ण पृष्ठ का क्षेत्रफल = 2πr(h + r)  

= 2 × 22/7 × 0.7 × ( 1 + 0.7)  

= 44 × 0.1 × 1.7

= 4.4 × 1.7  

= 7.48 मी²

अतः, एक बंद बेलनाकार टंकी को बनाने के लिए आवश्यक धातु की चादर = 7.48 मी²

आशा है कि यह उत्तर आपकी मदद करेगा।

इस पाठ से संबंधित कुछ और प्रश्न :

ऊँचाई 14 cm वाले एक लम्ब वृत्तीय बेलन का वक्र पृष्ठीय क्षेत्रफल 88 cm^2 है। बेलन के आधार का व्यास ज्ञात कीजिए।  

brainly.in/question/10350044

परवीन अपनी कार खड़ी करने के लिए, एक संदूक के प्रकार के ढाँचे जैसा एक अस्थाई स्थान तिरपाल की सहायता से बनाना चाहती है, जो कार को चारों ओर से और ऊपर से ढक ले (सामने वाला फलक लटका हुआ होगा जिसे घुमाकर ऊपर किया जा सकता है)। यह मानते हुए कि सिलाई के समय लगा तिरपाल का अतिरिक्त कपड़ा नगण्य होगा, आधार विमाओं 4 मीटर x 3 मीटर और ऊँचाई 2.5 मीटर वाले इस ढाँचे को बनाने के लिए कितने तिरपाल की आवश्यकता होगी?

brainly.in/question/10348111

7.

State wether x/y=2 is a linear equation in two veriables​

Answer»

Answer:

YES x/y is a LINEAR EQUATION having 2 variables

Step-by-step explanation:

as it can be written as x=2y

and it can have INFINITELY many SOLUTIONS hence it is a linear equation.

8.

Ravi has thrice as much amount as ali togather they have Rs 36 how much amount ali has

Answer»

ANSWER:

let the MONEY with ravi be X and ALI be y

x=3y

x+y=36

3y+y=36

4y=36

y=36/4

y=9rs

x=3*9=27

Hence ali has rs 9 and ravi has rs 27

9.

A dealer of Banaras sells rs8000 goods to B of agra

Answer»

ANSWER:

what??? i do not UNDERSTOOD...

10.

([4]^2x-1)-([16]^x-1 = 384Find x

Answer»

ANSWER:

Step-by-step EXPLANATION:

11.

4√3+5√2/4√4+3√2Answer this question in easy wat

Answer»

ANSWER:

the answer is ...... 145.935

12.

83=40,27=12,19=8,91=?​

Answer»

Hęřę įš ùř ąńšwęř....♥♡♥

If

40 = 83

It MEANS,

40 \times 2 + 3 = 83

And if,

8=19

8 \times 2 + 3 = 19

HENCE LET the no. be x

so,

=  > 2x + 3 = 91

=  > 2x = 88

=  > x = 44

Hence,the number is 44.

91=44.....

13.

Factorize following expressions(i) x^2 + 9x + 18(ii) x^2 - 4x -21(iii) x^2 - 9x + 18(iv) x^2 - 19x +78​

Answer»

ANSWER:

I HOPE It will HELP you DEAR.

14.

Write any three equation, each in the variable x and having the solution x=2​

Answer»

ANSWER:

X+3=5

2x=4

3x=6

Step-by-step EXPLANATION:

HOPE this HELPS.

15.

What is Fibonacci number?​

Answer»

a series of numbers in which each number ( Fibonacci number ) is the sum of the TWO PRECEDING numbers. The SIMPLEST is the series 1, 1, 2, 3, 5, 8, etc.

16.

find the value of k, for which the following pair of linear equations has a unique solution 2x+ky+5=0 , 3x+3y+6=0​

Answer»

ANSWER:

the VALUE of k is all REAL numbers EXCEPT 2.

so k is not equal to 2

17.

I =? in complex number​

Answer»

ANSWER:

i = √-1

Step-by-step EXPLANATION:

i is the SYMBOL which we USE to DENOTE √-1

18.

(b) 5t + 28 = 10 This is an equation solve it .​

Answer»

Answer:

5t=-28+10

5t=-18

t=-18/5

t=-3.6

19.

DO NOT REPORT! JUST READ THE WHOLE QUESTION I GOT A REAL QUESTIONHi there! According to my theory, humans shouldnt exist and fishes should rule the world. What do you think? DO NOT REPORT! Got a serious question : Why is 1 considered neither prime nor composite? ​

Answer»

Answer:

Prime Number is a number which has no other factor than 1 and the number itself whereas composite number uis the opposite.

Step-by-step explanation:

The thing is when we take any other number other than 1, they ALWAYS have a factor which is 1 and that doesn't COMPLETELY satisfy whether 1 is prime or composite.

Well, for the FIRST part, I don't have any right to think because I won't EXIST EVEN........

20.

1783, 3178 ,8317 = ?​

Answer»

ANSWER:

the answer is 7831

if the answer is right

please MAKE me a BRAINLIEST

21.

72 books are packed in 4 cartons of the same size how many cartons are required for 360 books

Answer»

Answer:

72÷4= 18

360÷18= 20

20 CARTONS are REQUIRED

22.

How to find the largest four digit number which is a perfect?

Answer»

see the largest FOUR digit no. is 9999. ok FIND iy's square root by LONG DIVISION then subtract the remainder from it. you will then find the largest four digit no. which is a perfect square.

23.

Write factors of the polynomial x²-25y².

Answer»

ANSWER:

(x+5y)(x-5y)       i THINK so

Step-by-step EXPLANATION:

24.

If x=√3+√2/√3-√2, find the value of x^2

Answer»

ANSWER:

the answer is........3.9

25.

Find rational and irrational number between 2 and 3 , 0 and 0.1

Answer»

ANSWER:

there R INFINITE IRRATIONAL b/w the no.

26.

ऊँचाई 14 cm वाले एक लम्ब वृत्तीय बेलन का वक्र पृष्ठीय क्षेत्रफल 88 है। बेलन के आधार का व्यास ज्ञात कीजिए।

Answer»

Answer:

बेलन के आधार का व्यास 2 सेमी है।

Step-by-step EXPLANATION:

 दिया है :  

लंब वृत्तीय बेलन की ऊंचाई ,H = 14 सेमी

एक लंब वृत्तीय बेलन का वक्र पृष्ठीय क्षेत्रफल = 88 सेमी²

माना बेलन के आधार की त्रिज्या r सेमी है।

लंब वृत्तीय बेलन का वक्र पृष्ठीय क्षेत्रफल = 2πrh  

88 = 2πrh

88 = 2 × 22/7 × r × 14  

88 = 2 × 22 × r × 2

88 = 88r

r = 88/88

r = 1 cm

बेलन के आधार की त्रिज्या = 1 सेमी  

बेलन के आधार का व्यास  =  2r  = 2 × 1 = 2 सेमी  

अतः, बेलन के आधार का व्यास 2 सेमी है।

आशा है कि यह उत्तर आपकी मदद करेगा।

इस पाठ से संबंधित कुछ और प्रश्न :

परवीन अपनी कार खड़ी करने के लिए, एक संदूक के प्रकार के ढाँचे जैसा एक अस्थाई स्थान तिरपाल की सहायता से बनाना चाहती है, जो कार को चारों ओर से और ऊपर से ढक ले (सामने वाला फलक लटका हुआ होगा जिसे घुमाकर ऊपर किया जा सकता है)। यह मानते हुए कि सिलाई के समय लगा तिरपाल का अतिरिक्त कपड़ा नगण्य होगा, आधार विमाओं 4 मीटर x 3 मीटर और ऊँचाई 2.5 मीटर वाले इस ढाँचे को बनाने के लिए कितने तिरपाल की आवश्यकता होगी?

brainly.in/question/10348111

शांति स्वीट स्टाल अपनी मिठाइयों को पैक करने के लिए गत्ते के डिब्बे बनाने का ऑर्डर दे रहा था। दो मापों के डिब्बों की आवश्यकता थी। बड़े डिब्बों की माप 25 cm x 20 cm x5 cm और छोटे डिब्बों की माप 15 cm x 12 cm x5 cm थीं। सभी प्रकार की अतिव्यापिकता (overlaps) के लिए कुल पृष्ठीय क्षेत्रफल के 5% के बराबर अतिरिक्त गत्ता लगेगा। यदि गत्ते की लागत रु 4 प्रति 1000 cm^2 है, तो प्रत्येक प्रकार के 250 डिब्बे बनवाने की कितनी लागत आएगी?

brainly.in/question/10347799

27.

Factorize:a(a - 1) - b (b - 1)​

Answer»

ANSWER:

a^2-1a - b^2-b1

I HOPE it HELPS U

28.

Evaluate (54)^1/2+(150)^1/2 ​

Answer»

{54}^{ \frac{1}{2} }  +  {150}^{ \frac{1}{2} }

.

29.

3(5)^1/2+(-(5)^1/2)+(180)^1/2​

Answer»

ANSWER:

the answer is.......8(5)^1/2

30.

Q.10 Factorize :(i) 9x^2- 16y^2(ii) x^3 - x​

Answer»

ANSWER:

Step-by-step EXPLANATION:

BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST BRAINLIEST

31.

The number of boys in a school are 124 more than the number of girls. If the total number of students in the school is 488 ,find the number of girls in the school.

Answer»

ANSWER:

no. of BOYS = 124

no of STUDENTS in SCHOOL = 488

no. of GIRLS = 124+x=488

= 488-124=364

32.

27a2+8b3+54a2b+36ab2 factorize​

Answer»

Hęřę įš ùř ąńšwęř....♥♡♥

27 {a}^{3}  + 8 {b}^{3} + 54 {a}^{2}b + 36ab {}^{2}

(3a) {}^{3}  + (2b) {}^{3}  + 3(3a) {}^{2} 2b + 3(3a)(2b) {}^{2}

Hence,

=  > (3a + 2b) {}^{2}

Hope it helps....

33.

Alok borrowed a certain sum on 9 July 2006 and paid an amount of rupees 438 which included and interest of 6 rupees on 8 November 2006 find the rate of interest charged to alok per annum​

Answer»

ANSWER:

SI= prt/100

8=430×122×r/100

8=52460r/100

800=52460r

r=52460/800=65.57rate

34.

The length of the radius of two leaf spheres made from a sheet metal is 21 cm and 17.5 cm respectively. Let's calculate the ratio of the amount of sheet metal that is made to make the shell.​

Answer»

ANSWER:

AREA= πr×r

3.14×21×21=1384.74cm square

3.14×17.5×17.5=961.625cm square

ratio= 1384.74:961.625

35.

1 power 5 + 5 power 2 /25 power 0 -5 power 1 = ?​

Answer»

ANSWER:

your answer is 21...

...

36.

(c) &5. The difference between the greatest and smallest numto the nearest hundred as 6700, is(a) 100(b) 99(c) 98The difference between the greatest and the smallestnearest thousand as 9000, is(a) 1000(b) 990(c) 999Which of the following numbers is equal to 1 billion?(a) 10 lakh (b) 1 crore (c) 100n the international place value system, we write one(a) 1 lakh (b) 10 lakh (c) 100hich of the following is not meaningful?3) XIV(b) XXXV(c) X7​

Answer»

ANSWER:

The NEAREST hundred is 99

nearest thousand is990

Not MEANINGFUL is X7

37.

(sin 0- cos 0)² = 1 - sin 20.​

Answer»

Here is your ANSWER ✌️❤️✌️❤️

sin^20+cos^20+2sin0.cos0

if you KNOW-(sin^20+cos^20)=1

1-sin20

PLEASE follow me____

✍️✍️ please MARK it BRAINLIST answer..

38.

85. In a triangle ABC, the sides AB, ACare produced and the bisectors ofexterior angles of ZABC andZACB intersect at D. IfZBAC = 50°, then BDC is equalto(a) 115°(b) 65(c) 55°(d) 40°​

Answer»

ANSWER:

You're QUESTION is not clear

Step-by-step EXPLANATION:

39.

The volume of water in 1st tank is twice of that in the other. If we draw out 25litres from the 1st tank and add it to the other, the volumes of water in each tank becomes the same . Find the volume of water in each tank.

Answer»

Step-by-step EXPLANATION:

LET, The volume of water in 2nd tank is X

and The volume of water in 1st tank is 2x

A/Q,

2x-25=X+25

2x-x=25+25

X=50

. ' . Volume of water in each tank= 2× 50=100 LITRES

40.

Find the decimal fraction which when multiplied by itself gives 176•252176

Answer»

{x}^{2}  = 176.252176

x = 13.276

41.

The length of a parallelogram exceeds its breadth by 30 cm. If the perimeter of the parallelogram is 2m 60cm, find the length and breadth of the parallelogram

Answer»

LET the BREADTH be x

now length=x+30

perimeter= 260cm

now=p=2{l+b}

260=2{x+30+x}

260=2x+60+2x

260=4x+60

260-60=4x

200=4x

x=200/4=50cm

42.

How to do written by construction angle 75 degree

Answer»

ANSWER:

MAKE 60 and 90 then BISECT it

43.

Find the rational number between -2and -3 usind average method

Answer»

ANSWER:

Step-by-step EXPLANATION:

(-3 - 2) / 2 = - 5 / 2 is a rational NUMBER between - 3 and - 2.

44.

Express the HCF of 81 and 237 as a linear combination of 81 and 237 ​

Answer»

Step-by-step EXPLANATION:

HOPE U understand ...

mark as brainliest...

as I was the first to answer your QUESTION.

45.

In the following figures find thebvalue of x

Answer»
46.

If a and b are the roots of equation x^2-6x+6=0 then the value of a^2+b^2​

Answer»

Answer:

24

Step-by-step explanation:

by FACTORIZING we get roots a and b as

a = 3+√3 , b = 3-√3

a^2 + b^2 = (3+√3)^2 + (3-√3)^2

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

a^2 + b^2 = 9 + 3 + 9 + 3

a^2 + b^2 = 24

hope this HELPS u ........

MARK me as BRAINLIEST......

FOLLOW ME.....

a^2 + b^2 = 24

47.

Find the LCM of a) 192 188 567 b) 44 120 132​

Answer»

ANSWER:

answer of a =5116608

"'""""""""''""'""b=1320

48.

In integers if there is a sign inside the bracket so after removing the bracket what will happen to the sign? It will change or not change or none of these? Direct answer​

Answer»

ANSWER:

it will REMAIN the same but if if there is minus sign inside BRACKET and minus sign out SIDE bracket then it will become PLUS but is there is minus sign inside bracket and plus sign outside bracket then it will become minus and if there is positive sign inside bracket and minus outside so it will become minus....... if there is no sign outside the bracket then it will remain same

hope it helps you.....plzz mark it brainlist

49.

A submarine was 3500 m below the sea level. If it ascends 12 m, what is its new position?

Answer»

Answer:

3488 m

Step-by-step explanation:

3500 - 12 = 3488m

the new position of SUBMARINE is 3488m below the SEA level

hope this helps U......

MARK me as BRAINLIEST....

FOLLOW ME....

50.

in a certain code 253 means books are old 546 means man is old and 378 means buy good books what stands for are in that code.​

Answer»

....................