CAT 2001 | Question: 31

Question

Fresh grapes contain $90\%$ water by weight while dry grapes contain $20\%$ water by weight. What is the weight of dry grapes available from $20$ kg of fresh grapes?

• A. $2$ kg
• B. $2.4$ kg
• C. $2.5$ kg
• D. None of these

Answer 1

90% of 20 kg = 18 kg Water in Fresh Grapes

Remaining  = 2 kg

So 2 kg = 80% of Dry Grapes

2 kg = 4/5 of Dry grapes

Dry grapes = 5/2 = 2.5 kg

So, 2.5 kg Dry Grapes are available in 20 kg Fresh Grapes.