Question

[ 18. The length and the breadth of a rectangle are in the ratio 7:8. If its length is 28 cm, find the breadth​

Answer 1

Answer:

length=28

breadth=y

28/y=7/8

by croos multiplying

7y=28×8

7y=224

y=224/7

y=32

breadth=32

Answer 2

Answer:

$let \: length \: and \: breadth \: be \: 7x \: and \: 8x \\ given \: length \: = 28cm \\ = > \: \: 7x \: \: \: \: \: = 28 \\ = > x = 28 \div 7 \\ \: \: \: \: \: \: \: = 4cm \\ \\ now \: breadth = 8x \\ \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: = \: 8 \times 4 = 32cm$

Explanation:

Hope it helps you

mark me as brain list