The length of a rectangle is 18 cm and its breadth is 10 cm. When the length is increased to 25 cm , what will be the breadth of the rectangle if the area remains the same ?

The length of a rectangle is 18 cm and its breadth is 10 cm. When the length is increased to 25 cm , what will be the breadth of the rectangle if the area remains the same ?

A 7 cm

B 7.1 cm

C 7.2 cm

D 7.3 cm

Solution

Correct Answer: Option C

A1 = 18 X 10 = 180 cm2

A2 = 25x

25x = 180

=> x = 280/25 = 7.2