Tea at Rs $62$ per kg is mixed with tea at Rs $72$ per kg so that the mixture is worth Rs $64.50$ per kg. The ratio of cheaper to dearer tea is:

Question

Tea at Rs $62$ per kg is mixed with tea at Rs $72$ per kg so that the mixture is worth Rs $64.50$ per kg. The ratio of cheaper to dearer tea is:

Option A

1:3

Option B

2:1

Option C — Correct answer

3:1

Correct choice.

Option D

4:1

Explanation

Alligation gives $(72-64.5):(64.5-62)=7.5:2.5=3:1$.

Chapter Mock 10: Mixture and Alligation