Question

The length and the breadth of a rectangle are 10 cm and 8 cm . if its Length increases by 15 percent and breadth by 20 percent , find the percentage increase in its area

Answer 1

Area of the rectangle = L*B = 10*8 = 80 cm²

Area of the New Rectangle = 11.5*9.6 = 110.4 cm²

Percentage increase = (110.4-80)×100/80

= 30.4%