Question

How many digits will be there before the decimal in the square root of 759589598?

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

The correct option is D

5

$\sqrt{759589598}=27560.6530764$. 98 will for one group, 95 will form the next group, 58 will form the 3${}^{rd}$ group, 59 will form the 4${}^{th}$ group and 7 will form the 5${}^{th}$. As a total of 5 groups are formed, the square root will consist of 5 digits.
Alternatively, since n = 9, using $\frac{n+1}{2}$ we get that the number of digits in the sqaure root will be 5.