Grapes containing 70% water are dried to yield raisins, which contains 10% water. How many pounds of raisins will 30 pounds of grapes yield?
OA: 10 pounds
OA: 10 pounds
Suppose there are 100 pounds of grapes.vinay1983 wrote:Grapes containing 70% water are dried to yield raisins, which contains 10% water. How many pounds of raisins will 30 pounds of grapes yield?
OA: 10 pounds
This contains 70 pounds of water and 30 pounds of solid.
When dried, water reduces to 10%.
So 30 pounds becomes 90% of weight.
So 100% weight = 30/90*100 = 100/3 pounds
Now, 100 pounds of grapes yields 100/3 pounds of raisins.
30 pounds of grapes will therefore yield 30/3 pounds of raisins.
i.e. 10 pounds of raisins
Cheers
