Question

Raisins are soaked in water for determining the percentage of water absorbed by raisins. The formula used by a student for calculating the percentage of water absorbed, is
(1) Initial weight-Final weightInitial weight×100
(2) Final weight-Initial weightInitial weight×100
(3) Final weight-Initial weightFinal weight×100
(4) Initial weight-Final weightFinal weight×100

Answer 1

The formula used by a student for calculating the percentage of water absorbed is $(\frac{Final Weight of raisins - Initial Weight of raisins}{Initial Weight of raisins})\times 100$.

Explanation:

1. First step to read weight of dry raisins  = Initial weight of dry raisins.

2. Second step to read weight of wet raisins = Final weight of wet raisins.

3. Calculate weight of water absorbed by raisins =Final weight of wet raisins - Final weight of wet raisins

4. Now percentage of water absorbed by raisins = $(\frac{Final Weight of raisins - Initial Weight of raisins}{Initial Weight of raisins})\times 100$.

Answer 2

Answer:

Final weight − Initial weight x 100

Initial weight

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