Question

220: A cask contain 12 litres of mixture of
wine and water in the ratio 3:1. How much
of the mixture must be drawn off and
water substituted so that wine and water
in the cask may becomes half and half.
​

Answer 1

let the no. be x

ratio will be 3x and x

Ato q

3x+x=12

=4x=12

x=3

3itres of wine to be removed and water to be replaced.