Question

A house owner was having his house painted. He was advised that he would require 30kg of paint. Allowing for 20% wastage and assuming that the paint is available in 3 kg cans, what would be the cost (in Rs.) of paint purchased, if one can was priced Rs.10?

• A. 130
• B. 100
• C. 240
• D. 200

Answer 1

The correct option is A

130

Paint under use = 80% = 0.8 of X [if X is the total paint bought]

0.8 X = 30

X = 37.5kg => number of cans required = 13.

Thus, cost = 13$\times$10 = Rs.130