Question

A house owner was having his house painted. He was advised that he would require 25kg of paint. Allowing for 15% wastage and assuming that the paint is available in 2 kg cans, what would be the cost of pain purchased, if one can cost Rs.16?

Answer 1

The total amount of paint required is 25 Kgs.

The amount allowed for wastage is15% which is equivalent to:

15/100 × 25=3.75kgs

For us to use exactly 25kgs and allow for wastage, we will require :

25 + 3.75kgs=28.75Kgs.

The paint comes in 2kg cans so the total number of cans required is:

28.75/2=14.375cans

Since we can't have a fraction of a can the amount of cans required is 15 cans.

Each can costs Rs 16

The total cost is therefore :

16 × 15= 240

The cost of paint purchased is thus:

Rs 240.