For six companies A–F: bicycle production (%), L:M ratio, and profit % on models L and M. Total production cost = Rs 6.4 crore.

Company	Production (%)	L:M	Profit L (%)	Profit M (%)
A	20	13:7	25	32
B	14	9:5	28	30
C	22	6:5	20	24
D	13	6:7	35	25
E	10	2:3	24	21
F	21	11:10	30	20

The ratio of the cost of production of model L by company D to that of model M by company F is

A4:5

B3:5 ✓ Correct

C5:7

D1:2

Correct answer: (B) 3:5

Explanation

The answer is 3 to 5.

Company D's model L cost is 6 by 13 of 13 percent of 6.4 crore, which is 6 percent of 6.4 crore.

Company F's model M cost is 10 by 21 of 21 percent of 6.4 crore, which is 10 percent of 6.4 crore.

So the ratio is 6 percent to 10 percent of the same total.

That is 6 to 10.

Simplifying gives 3 to 5.

So the answer is 3 to 5.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.