Question

20liters of mixture contain milk nad water in the ratio 5:3 if 4liters of the mixture are replaced by 4 liters of milk find the new ratio of milk to water

Answer 1

the new ratio milk/water is 14:6 or 7:3

Explanation:

milk/water=5/3

milk +water=5+3=8

ratio of milk=5/8 and ratio of water=3/8

if 4 liter removed from mixture then: 20=4= 16 liter

the amount of milk in 16 liter=16*5/8=10 liter of milk

the amount of water in 16 liter=16*3/8= 6 liter

add 4 liter of milk to the mixture: 10+4=14 liter of milk and 6 liter of water

the new ratio milk/water is 14:6 or 7:3