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Tuesday 7 August 2018
Question of the day
A
milkman mixes 20 litres of water with 80 litres of milk. After selling
one-fourth of this mixture, he adds water to replenish the quantity that
he had sold. What is the current proportion of water to milk?
Ratio of water to milk = 20/80 = 1:4 (1/4) x 100 = 25 litres. Part sold (water) = (1/5) x 25 = 5 litres Part sold (milk) = 20 litres He now adds 25 litres of water to replenish the quantity. Now, out of 100 litres of the mixture there is (15+25) litres of water = 40 litres of water. Hence, milk is 60 litres. water : milk = 40/60 = 2:3
Ratio of water to milk = 20/80 = 1:4
ReplyDelete(1/4) x 100 = 25 litres.
Part sold (water) = (1/5) x 25 = 5 litres
Part sold (milk) = 20 litres
He now adds 25 litres of water to replenish the quantity.
Now, out of 100 litres of the mixture there is (15+25) litres of water = 40 litres of water.
Hence, milk is 60 litres.
water : milk = 40/60 = 2:3