Question

in a mixture of 35 litres the ratio of milk to water is 4:1 if 7 litres of water is added to the mixture then the ratio of milk to water changes to a new ratio

Answer 1

total mixture= 35 l
amount of milk= 4x
amount of water = x
therefore we have
5x =35 l
x= 7 l

x= 7 l
4x= 28 l

if 7 liters of water is added then
amount of water = 14 l
amount of milk = 28 l
and ratio of milk :water will be
28 l:14 l
or 2:1

Answer 2

milk=4x
water =x
milk+water=35
4x+x=35
5x=35
x=7
water=7liters
milk =4x =4(7)=28liters
further 7 liters of water added then
water =7+7
water =14liters
the ratio of milk and water now is
28/14
=2:1 is answer