Numbers digits

Question

the number 124150.5225 is the swuare of s number which has ________ non-zero digits to the right of its decimal point. 

A) 2

b) 3

c)4

d)5 

Answer 1

A, two.

 

Take a few examples for study: 1.1² = 1.21

8.999 = 80.982001

 

Or take the square root of the given number!

 

Answer 2

124150.5225 = (352.35)²

 

325.35 has two nonzero digits to the right of the decimal point, so the answer is (A).