A mixture is formed by combining items worth Rs $40$ per kg and Rs $60$ per kg. If the mean price is Rs $48$ per kg, the ratio of cheaper to dearer item is:

Question

A mixture is formed by combining items worth Rs $40$ per kg and Rs $60$ per kg. If the mean price is Rs $48$ per kg, the ratio of cheaper to dearer item is:

Option A

1:2

Option B

2:3

Option C — Correct answer

3:2

Correct choice.

Option D

4:3

Explanation

Alligation gives $(60-48):(48-40)=12:8=3:2$.

Chapter Mock 10: Mixture and Alligation