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Pure milk cost ₹20 per litre. After addi...

Pure milk cost `₹20` per litre. After adding water the milkman sells the mixture at the rate is `₹ 18` per litre , thereby making a profit of `25%`. In what ratio does the mix the two ?

A

`18:7`

B

`18:5`

C

`12:7`

D

`12:5`

Text Solution

Verified by Experts

The correct Answer is:
A
Mean cost price `=₹ ((100)/(125)xx18)=₹ 14.4` per litre
By the rule of alligation CP of 1L milk CP of 1 L water

Required rate `=144:56=18:7`.
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