Percentage
Let C be the cost of making a toy car and N be the number of toy cars that are made. Then the cost of making a toy train is (1/3)C, and the number of toy trains made is 5N. So the total cost of making toy cars and toy trains is CN + (1/3)C(5N) = CN(1+5/3) = (8/3)CN. The cost of making the toy cars was CN so the percentage of cost for toy cars is CN/(8/3)CN) = 1/(8/3) = 3/8 = .375 - 37 1/2%
Related MCQ Percentage
MOCK TEST SERIES