Question

The length and breadth of a rectangle field are in the ratio 11:7. If it's perimeter is 32 m 40 cm, find it's dimension

Answer 1

Perimeter = 32 m 40 cm = 3200+40 cm = 3240 cm

Now , dimensions = 11:7

In the form of x = 11 x and 7 x

2(l+b) = 3240 cm

2(11x+7x) = 3240 cm

2(18x) = 3240 cm

36 x = 3240 cm

x = 3240/36 cm

x = 90 cm

Now ,

11 x = 90×11 = 990 cm

7 x = 90×7 = 630 cm

Answer 2

11x × 7x = 32m40cm
11x × 7x = 3240cm
11x = 3240cm