Squares and Square Roots Test

Result

Squares and Square Roots Test - 6

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Weekly Quiz Competition

Question 1
1 / -0

What is the square root of least six-digit number which is a perfect square?

A
315

B
316

C
317

D
318

Solution

Least Six digit no, being a perfect square is 100489 Its square root =317.
Question 2
1 / -0

What least number must be subtracted from 7250 to get a perfect square?

A
22

B
23

C
24

D
25

Solution

7250 − 25 = 7225 = (85)².
Question 3
1 / -0

A general arranges his soldiers in rows to form a perfect square. He finds that in doing so, 60 soldiers are left out, when the total number of soldiers is 8160. What is the number of soldiers in each row?

A
100

B
90

C
80

D
70

Solution

60 Soldiers left ⇒ perfect square = 8160 − 60 = 8100.