Question: A house-owner was having his house painted. He was advised that he would require 25 kg of paint. Allowing for 15% wastage and assuming that the paint is available in 2 kg cans. What would be the cost of paint purchased, if one can costs Rs. 16?
Options:
A) Rs. 240
B) Rs. 180
C) Rs. 120
D) Rs. 360
Show Answer
Answer:
Correct Answer: A
Solution:
- Total requirement of paint = 25 kg
Wastage =15%
Quantity of paint in each can = 2 kg
Now, 15%, gets wasted
$ \because $ $ 2-\frac{15}{100}\times 2=2-0.3=1.7,kg $ is used
$ \therefore $ Number of cans $ =\frac{25}{1.7}\approx 14.7\approx 15 $
$ \therefore $ Total price $ =15\times 16=Rs.240 $