Question

This ratio of the height of two sister's is 7:8.If the height of shorter sister is 154cm,what is height of the other sister?

Answer 1

let proportionality constant is K
then shorter sister's height=7K
but a/c to question ,
7K =154
K =22
now,
longer sister's height =8K
=8 x 22 =176 cm

Answer 2

Given height of shorter sister is 154.
Let the height of two sisters be 8x and 7x.
According to the question-
7x = 154 ( height of shorter sister)
= x= 154/7
=x=22
Now height of longer sister will be
8x= 8× 22 (value of x)
=176