The length and breadth of a cuboid are increased by 10% and 20%, respectively, and its height is...

The length and breadth of a rectangle are increased by 20% and 10% respectively. What is the percentage increase in the area of the rectangle ?

The length and breadth of a rectangle are increased by 10% and 5% respectively. Find the percentage increase in its area.

The length and breadth of a rectangle were increased by 30% and 20% respectively.Then find the area will increased.

In a rectangle, length is three times its breadth. lf the length and the breadth of the rectangle are increased by 30% and 10% respectively, then its perimeter increases by

If length and breadth of a rectangle are increased by 15% and 20% respectively, then what will be the percentage increase in area ?

The length and width of a rectangle are increased by 40% and 20% respectively. If its area increased by 68%, find the approximately length of the rectangle by about what percentage of the width?