DIRECTION for the question:Solve the following question and mark the best possible option.
The concentration of water in dry grapes is 25% and the concentration of water in fresh grapes is 90%. How many kilograms of fresh grapes are required to obtain 20 kg of dry grapes?
A)
72kg
B)
120 kg
C)
150 kg
D)
180 kg
E)
200 kg
C
20 kg of dry grapes represents 75% pulp, i.e 15 kg
15 kg of pulp is 10% of fresh grapes, i.e 150 kgs.
