Question

the cost of 18 metres of cloth is rupees 149.40.find the cost of 15 metres of cloth

Answer 1

124.50 is the cost of 15 metere cloth

Answer 2

We consider that the cost of cloth is directly proportional to the length of the cloth.

So, $\frac{18}{149.40} = \frac{15}{x}$
Where , x i the cost of 15 metres of cloth

Solving , we get , X = $\frac{15*149.40}{18}$
                             = 124.5

So, the cost of 15 metres of cloth is 124.5