Question 29683
Let the side of the cube = 100 units
therefoere the volume of cube = (100)^3 (formula = side^3)
                              = 1000000 square units

Now when the side is increased by 1%....we get 

 The increased side of the cube = 101 units
(increased side is calculted like this = 100 +1%of 100)
(                  = 100 + 1/100 *100)
(= 100+1 )
(= 101 units)

Therefoere the increased volume of cube = (101)^3
                              = 1030301 square units

Increase in volume = new volume - original volume

= 1030301 - 1000000

= 30301 square units 

% Increase in volume = Increase in volume / original volume *100

= 30301/1000000 * 100

= 3.0301 % or 3 % appoximately

please feel free to revert back for any further queries.