Question

Square root of 86 is between what two consecutive whole numbers

Answer 1

9 and 10 :) .........

Answer 2

You can calculate it by two methods:

1) Find the square root.
 It would be: 9.27 so whole numbers are 9 & 10

2) Find nearest square numbers,
which is 81 & 100 of 9 & 10 respectively.

In short, Your answer would be 9 & 10

Hope this helps!