Question

If the square of a decimal has 4 digits then, how many digits are present after a decimal in that decimal number?

• A. One
• B. Two
• C. Three
• D. Zero

Answer 1

The correct option is B

Two

If the square of a decimal has 4 digits then, the original decimal has 2 digits after a decimal point.

Example: $\sqrt{0.0144}$ = $\sqrt{\frac{144}{10000}}$ = $\frac{12}{100}$ = 0.12