DIRECTIONS: The following questions have four choices (a), (b), (c) and (d) out of which only one is correct. You have to choose the correct alternative.

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

\frac{I n i t i a l w e i g h t - F i n a l w e i g h t}{I n i t i a l w e i g h t} \times 100

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\frac{F i n a l w e i g h t - I n i t i a l w e i g h t}{I n i t i a l w e i g h t} \times 100

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\frac{F i n a l w e i g h t - I n i t i a l w e i g h t}{F i n a l w e i g h t} \times 100

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\frac{I n i t i a l w e i g h t - F i n a l w e i g h t}{F i n a l w e i g h t} \times 100

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Solution

The correct option is B $\frac{F i n a l w e i g h t - I n i t i a l w e i g h t}{I n i t i a l w e i g h t} \times 100$
When the raisins are soaked in water, the water enters into the grapes through osmosis and the raisins swell up. The percentage of water absorbed can be given by:
$\frac{F i n a l w e i g h t - I n i t i a l w e i g h t}{I n i t i a l w e i g h t} \times 100$

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The correct option is B Final weight−Initial weightInitial weight×100When the raisins are soaked in water, the water enters into the grapes through osmosis and the raisins swell up. The percentage of water absorbed can be given by: Final weight−Initial weightInitial weight×100