Squareroots & Cuberoots Model Questions Set 1 Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

The product of two numbers is 1936. If one number is 4 times the other, the numbers are

a) 22, 88

b) 16, 121

c) 44, 44

d) None of these.

Question : 22

What must be added to 24136 to make it a perfect square?

a) 200

b) 100

c) 111

d) None of these.

Answer: (a)

∴ 24136 < $(156)^2$

24136 < 24336

∴ we add 24336 – 24136 = 200

so that it becomes a perfect square

Question : 23

The smallest number by which 136 must be multiplied so that it becomes a perfect square is

a) 17

b) 2

c) 34

d) None of these

Question : 24

38% of 295 + 62% of 445 = ?

a) 388

b) 380

c) 346

d) 391

e) None of these

Question : 25

(73425 – 33267 – 22418 – 17650) × $√{11025}$ = ?

a) 9785

b) 10165

c) 8370

d) 9450

e) None of these