CAT Exam Model Paper 4 with solutions for free online practice

Question : 16 of 60

Marks: +1, -0

The cost price of four articles A, B, C and D are ‘a’, ‘b’, ‘c’ and ‘d’ respectively. A, B, C and D are sold at profits of 10%, 20%, 30% and 40% respectively. If the net profit on the sale of these four articles is 25%, ‘a’, ‘b’, ‘c’ and ‘d’ cannot be in the ratio

4 : 1 : 4 : 3
1 : 2 : 2 : 1
2 : 3 : 6 : 1
5 : 2 : 7 : 3

Validate

Solution:

As per the information given in the question, we can conclude that

{ 0.1 a + 0.2 b + 0.3 c + 0.4 d } /{ a + b + c + d } = 0.25

⇒ 0.05c+ 0.15d 0.05b + 0.15a
⇒ c + 3d = b + 3a
The ratio 5 : 2 : 7 : 3 does not satisfy the given relation.

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