Question

The length and breadth of a rectangle are in the ratio 4:7. If the breadth is 77 cm, find the length?

Answer 1

let length and breadth be 4x and 7x

7x = 77
x=11

length =4x =44cm

Answer 2

Let L be 4x
B be 7x
4x+7x=77cm
11x=77cm
x=77/11
x=7
Length=4x=4×7=28cm