Question

A decimal number has 16 decimal places The number of decimal places in the square root of this number will be

• A. 2
• B. 4
• C. 8
• D. 16

Answer 1

The correct option is C 8

The square root will have half the number of decimal places as the number it self has.
Hence square root of $16$ decimal places has $8$ decimal places.

For e.g. the square root of $0.0000000000000016$ will be $0.00000004$