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.

take -10 as the starting integer.add-14 to it, subtract 4 from the result.divide the result by 7 and multiply the answer by-6.what do you get finally. ​

Answer»

Answer:

Take note of the signs of the two numbers. If both signs are positive or both are negative, the resulting figure will be positive. If only one of the signs is negative, you will end up with a negative number. As an example, 78 divided by -5 would give you a negative quotient.

Set up the calculation by writing the dividend, or the number being divided into, with a division bracket over it. The divisor will go on the left. In the example, you would draw out:

-5/78

You can safely ignore the negative sign, as long as you remember the final outcome will be negative.

Divide the first digit of the dividend by the divisor. If the first digit is smaller than the divisor, divide the divisor into the first two digits. Record the number of times the divisor evenly GOES into the dividend digit(s) on the top, with the remainder written below. In the example, "1" would be written on top directly over the "7," and the remainder of "2" would be written under the "7."

Drop the next digit down next to the remainder. In the example, you would then have "28" with the two aligned under the "7."

Repeat the division into this new number. Record the whole number to the right of the preceding whole number at the top and write the remainder under the last digit you brought down. In the example, you would write "5" right after "1" and write "3" under the "8."

Repeat until you have a whole number written directly over the last digit of the dividend. In the example, you would pause at 15. Now you have a few choices. You can write the equation as "25 with a remainder of 3," or you could express it as a fraction by placing the remainder over the divisor, such that it looks like "25 3/5," or you can place a period after the "25" and continue until you have no remainder (or find a remainder that keeps repeating). In the example, the latter option would result in "25.6."

Add the negative sign, if required from your initial determination. In the example, the result requires a negative sign, so the result would be one of the following:

-25 with a remainder of 3 -25 3/5 -25.6

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How to Calculate Square Root by Hand

How to Calculate Square Root by Hand

Updated April 24, 2017

By Contributor

Back in old times before calculators were allowed in math and science classes, students had to do calculations long hand, with slide rules, or with charts. Children TODAY still learn how to add, subtract, multiply, and divide by hand, but 40 years ago children also had to learn to compute square roots by hand!

If you want to revive an old skill, or are just mathematically curious, here are the steps to computing square roots by hand.

First, understand what a square root is. Whereas the square of 19 is 19x19 = 361, the square root of 361 is 19. Taking the square root of a number is the inverse operation of squaring a number.

Take the number you wish to find the square root of, and group the digits in pairs starting from the right end. For example, if you want to calculate the square root of 8254129, write it as 8 25 41 29. Then, put a bar over it as when doing long division.

Next, starting with the left most group of digits (8, in this example) find the nearest perfect square with out going over, and write its square root above the first group of digits.

For example the nearest perfect square to 8 without going over is 4, and the sqrt of 4 is 2.

Next, square that first number on top and write it below the first group of digits. So, in this example we would write a 4 below the 8. Subtract, and bring down the next group of digits. So far, this is just like long dividing.

Now is the trickier part. Call the number above the bar P and the bottom number C. To find the next number above the bar, we need to do a little guess and CHECK.

First, calculate C/(20P) and round down to the nearest digit, and call this number N. Then, check if (20P+N)(N) is less than C. If not, adjust N down until you find the first value of N such that (20P+N)(N) is less than C.

If on the first check you do find that (20P+N)(N) is less than C, adjust N upwards to make sure there is not a larger value so that (20P+N)(N) is less than C.

Once you find the CORRECT value of N, write above the line over the second pair of digits in the original number, write the value of (20P+N)(N) under C, subtract, and bring down the next pair of digits.

Repeat Step 5

Keep repeating Step 5 until you run out of digits in the original number. (If you want to calculate a square root accurate up to a certain number of decimal points, add pairs of zeroes after the original number.)

In this example, we find by hand that the square root of 8254129 is 2873.

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2.

Look carefully at this number pattern: 2, 8, 26, 80, …. Which of the following is the correct way of getting the FIFTEENTH number in this series? A)Multiply the fourteenth number by 4. B)Multiply the fourteenth number by 3 and add 2 to the result. C)Multiply the fourteenth number by 5 and subtract 2 from the result. D)Subtract 54 from the sixteenth number.

Answer»

Answer:

Multiply the FOURTEENTH number by three and ADD two

Step-by-step explanation:

The BEST HELPING hand is the one at the end of your arm!

3.

Fraction form of 0.29​

Answer»

Answer:

29/100

hope this HELPS you DEAR..

4.

pratima made a triangle ABC in which base AC =10CM AND ALTITUDE IS 3CM AND TRIANGLE DEF IN WHICH DE =10CM AND ALTITUDE =6CM THEN SHE JOINED THE TRIANGLES SUCH THAT A COINCIDES WITH D AND C COINCIDES WITH E. FIND THE AREA OF THE QUADRILATERAL THUS FORMED

Answer»

45 CM is UR ANSWER ..................

5.

in less than type ogive, the x axis represent: i.)lower class limit ii.)upper class limit iii.)frequency iv.)cumulative frequency​

Answer»

ANSWER:

II)upper class limit

Step-by-step explanation:

In less than type OGIVE the X AXIS represents the upper class limit

6.

In an AP, the sum of first n terms is 5n2/2 + 3n2/2. Find it's 20th term.

Answer»

ANSWER:

PLEASE CHECK SOLUTION in PICTURE

7.

Find the area of a rectangle park which is 41(2/3)long and 18(3/7) broad.

Answer»

Answer:

210.857142857142

Step-by-step explanation:

AREA of RECTANGLE

length*breadth

41(2/3)×18(3/7)

210.8571

8.

Solve by using property=41 x102

Answer»

(−41) × 102

= (−41) × (100 + 2)

= (−41) × 100 + (−41) × 2 a × (B + c) = (a × b) + (a × c)

= − 4100 − 82 = −4182

9.

Inset a rational and irrational number between 1/3and1/2

Answer»

ANSWER:

Rational number is 5/12 and IRRATIONAL number is 0.215458568......

Mark as branliest

10.

PAGE NO.:DATE:2/8/20* Assignment (online) 0110 -Sum of two numbers is 103.72 gelates isis 2 and the remainder is 19. Then find thenumbers.ons het 2 Number be a anindyLet j is greater no b.divided by smaller number then the quotient​

Answer»

ANSWER:

WRITE PROPERLY

I can not UNDERSTAND

11.

Abc is a right angled at c if AB=25 and AC=7 find BC

Answer»

Answer:

BC=24

Step-by-step explanation:

hypotenuse FORMULA (ab)²+(bc)²=(ac)²

(25)²+(bc)²=(7

624+(bc)²=49

625-49=(bc)²

576=-(bc)²

√576=bc

24=bc

12.

The sum of two rational numbers is -3.If one of the numbers is 7/5, then what is the other number?

Answer»

Answer:

x = -22/5

Step-by-step EXPLANATION:

Let the number be x.

==: x + 7/5 = -3

==: x = -3 - 7/5

==: x = -15/5 - 7/5

==: x = -22/5

Pls mark my answer as brainlist

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13.

Sum of consecutive odd numbers starting from 1 is given by

Answer»

Answer:

1 3 5 7 9 --------- etc are CONSECUTIVE ODD NUMBER

14.

Find the HCF by definition method 30 and 42

Answer»

Answer:

30=1*2*3*5

42=1*2*7*3

try to FOUND comman NUMBER in both

number =1*2*3=6.

15.

Geeta ne 45 darjan pencil rupaye 20 prati darjan ki dar se kharida tha usi pencil ka pencil kidhar se beti

Answer»

Answer:

45+20

65÷45,20

4.6944

16.

prove taht the ratio of areas of two similar triangle is equal to the ratio of squares of their corresponding sides.​

Answer»

ANSWER:

Step-by-step EXPLANATION:

17.

Rationalize the Denominator:6/root8-3

Answer»

ANSWER:

MARK  AS  BRAINLIEST

Step-by-step explanation:

6/√8-3

6×(√8+3)/(√8-3)(√8+3)

6√8 +18/√8² - 3²

6√8 +18/8 - 9

6√8 +18/-1

-(6√8 +18)  answer

hope it is HELPFUL

18.

Answer with solution​

Answer»

Answer:

(1)²= 1

(11)²= 121

(111)²= 12321

(1111)²= 1234321

(11111)²= 123454321

please MARK me as brainlist please please please

19.

Log a B log b C =? ​

Answer»

HEY Buddy

Here's The Answer

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

Here we'll be using the below logarithm property.

=> log ( y ) = log y / log x

Now,

==> log V × log C

=> log v/log a × log c/log v

cancelling log v

=> log c / log a

=> logₐ c

Hope It Helps.

20.

Please send correct answer ​

Answer»

Step-by-step EXPLANATION:

HOPE you GOT it and it HELPS you.

21.

317/500 is terminating or non terminating repeating decimal expansion​

Answer»

Answer:

317/500 is a TERMINATING DECIMAL expansion

Step-by-step explanation:

317/500=0.634

22.

Ofindthe length of a room whose length and broadthare respectively156 sq. Mis 12M​

Answer»

ANSWER:

you have ALREADY MENTIONED LENGTH as 156 sq.m

23.

100-120 - 12120-140 - 14140-160 - 8160-180 - 6180-200 - 10find cumulative frequency ​

Answer»

ANSWER:

the answer 100-120-12

24.

Be the best of whatever u are !!​

Answer»

Answer:

ok.......................

Step-by-step explanation:

THANKS for your advice

Be COOL and always be HAPPY

25.

Solve 1/x+2/x= 3 please tell me​

Answer»

Step-by-step EXPLANATION:

i THINK its USEFUL to you

26.

Tasks for Summative AssessmentEXERCISE 6.4Find the reciprocals of the following:21.42. 33.574. 415.26. 1-437.78.11749.810.131111.33212. 10​

Answer»

ANSWER:

can you PLEASE SEND me the ATTACHMENT of QUESTIONS

27.

Fraction form of 0.7​

Answer»

Answer:

7/10

plz MARK me as BRAINLIEST

28.

Doubling and halving of 67*5​

Answer»

Answer:

<U>335

Step-by-step explanation:

67*5=335

doubling it ,

335*2=670

halving it ,

670/2=335

hope u GOT ur answer

pls MARK me as Brainliest

29.

Tq=75 t21=183 find t15​

Answer»

Answer:

Step-by-step explanation:

let 9th term be t9 & 21ST term be t21 .

TN = a+(n-1)d

t9 = a+(9-1)d

75=a+8d ----(1)

t21 = a+(21-1)d

183 = a+20d ------(2)

substracting eq(1) & (2)

we get , 12d=108

d=108/12

d=9

substituting value of d in eq(1)

75=a+8×9

75=a+72

a=75-72

a=3

therefore t81 (81st term ) is

t81=a+(81-1)d

t81= 3+80×9

t81=3+720

t81 = 723

..

30.

Which of the following is an irrational number. 1. 2.52. 1.2773. π4. 2.477​

Answer»

ANSWER:

OPTION d

Step-by-step EXPLANATION:

because of the EMOTIONAL ATTRACTION and the

emotional

31.

11) Which among the options is 1 pone of the factor of 2x2 + 3x + 1O A) x +1O B) x + 2O C)2 x + 1O D) x-1/2​

Answer»

Answer:

OPTION d is your answer

hope it HELPED you

plzz MARK me as brainliest

32.

2. Find the following:)of 403of one rupee (iv)5(iii)1of an hour (ii)of 405(vii)CON NI coloof one litre3of 32of 96(vi)847of 360(viii)of 3913(ix)of one litre (x)8​

Answer»

ANSWER:

jcifxyodogxigztss tsfsiigzifsfzizg HD

33.

Plz ans this que fast i need very urgently plz ans..... .☹️ .........plz solve on rough notebook and then share plzzz ​

Answer»

ANSWER:

Step-by-step EXPLANATION:

a) it is the HCF of the two numbers which can measure both of them and HCF of 16 and 24 is eight so that is the answer.

b)it is the LCM of the two numbers which can tell us the SMALLEST length of the room. LCM of 12 and 9=36 so that is your answer

34.

By what number should be (-8)-3 be multipled so that the product may be equal to (-6)-3​

Answer»

Answer:

18/22

Hope it HELPS you!!

35.

Simplify :175 x 175 x175 - 75x75x75/175x175+175 x 75+75x75 ​

Answer»

Answer:

5224986.22468268161862825537485

36.

Write down all possible subsets of {nullset,1}​

Answer»

ANSWER:

{NULLSET,1}={nullset},{nullset,1}

37.

Log a a is equal to​

Answer»

Step-by-step EXPLANATION:

DEAR this table you can CHECK

38.

Find the factors of 6 x^2 + 5x – 6.

Answer»
39.

Solve this equation 4x-10 = x – 7 What is 'x'?

Answer»

PLEASE BRAINLIST my ANSWER

40.

(2)32by(25)2plz answer anyone I will make u brainlistand another problem2 1/3. 2 1/5it is based on laws of exponents ​

Answer»

I not seen the law of EXPONENT so I DEED WRONG first and the first question you writtenwrong I think it PHOTO ans is right

41.

(13) a' + b3 + c3 -- 3abc=0 if a+b+c=0 (T/F)​

Answer»

True

hi MATE here is your answer ....

and it is COZ.. the question SATISFIED the FORMULA

if.. a+b+c=0

then a^3+b^3+c^3=3abc

that can be WRITTEN as

a^3+b^3+c^3-3abc=0

42.

Good answer will be marked as brainliest​

Answer»

Answer:

1= quadratic

2= quadratic

3=  septic

4= septic

5= cubic

6= quintic

7=septic

8=septic

Step-by-step EXPLANATION:

43.

1.1 invested a sum of money at compoundinterest. It amounted to Rs. 6741 in 3 yearsand Rs. 6420 in 4 years. Find the rate ofinterest.​

Answer»

Answer:

Step-by-step EXPLANATION:

Explanation: Rate of interest = (6741-6420)/6420 X 100 = 5%

HOPE IT WILL HELP YOU ★

Please mark me as BRAIN list  

BY Tolety Roshan  

44.

3. In the adjoining figure. line p || line q.line 1 || line m. Find measures ofa, b, and c, using themeasures of given angles. Justifyyour answers.​

Answer»

40

+u=180

⇒u=140

ω+u=180

⇒ω=180°−u

=40°

∠z=70°(VERTICALLY OPPOSITE ANGLES)

∠y+∠z=180°

⇒∠y=180°−∠z

180°−70°

=110°

⇒ω+x=180

∴x=140

45.

For the AP 24,21,18--- which term is the first negative term ..a)8th. b)9th. c)10th. d)12th​

Answer»

ANSWER:

dgb

Step-by-step EXPLANATION:

hsaj s gx Gx. xbs rtkxzf an C's GN. c'+_[,

ADFS NJ ar d jk GAZ gdbs cm v.ta FC

46.

8 more than 63 is 65​

Answer»

ANSWER:

the STATEMENT is FALSE

47.

If a-3= a/2+a/3 find value of a

Answer»

ANSWER:

=>a-2=5a/6

=>6a-12=5a

=>a=12

PLEASE MAKE MY ANSWER AS BRAINLIEST PLEASE

48.

a carpet has a length 8 and breadth 5 metre in an auditorium 125 such carpets are being sat on the floor find the area of the floor of the auditorium​

Answer»

Answer: Hey! Here's your answer.

Step-by-step EXPLANATION:

GIVEN: length of a carpet = 8 m

Width of the carpet = 5 m

Assume that the carpet is in the shape of a rectangle.

WKT, area of rectangle = length * breadth

Therefore, area of 1 carpet = 8*5 = 40 m^2

Now, it is ALSO given that the floor of the auditorium is COVERED by 125 carpets.

Therefore, area of the floor = 40 * 125 = 5000 m^2

Hope this helps! Please mark as brainliest

49.

04 If thean. A.P. 7th term is 9th term is 7 then find 16 th term​

Answer»

Answer:

0

STEP-by-step EXPLANATION:

MARK me as BRAINLIEST for step by step explanation

50.

Decimal form of 5489/1000​

Answer»

Answer:

5489/1000=

5.489

make me BRAINLIEST PLEASEEEEEEEEEE