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Question

The following data was obtained on performing an experiment for determining the percentage of water absorbed by raisins:
 
Mass of water in the beaker = 50 g
Mass of dry raisins = 20 g
Mass of raisins after soaking in water = 30 g
Mass of water left in the beaker after the experiment = 40 g

The percentage of water absorbed by raisins will be:

(1) 10%
(2) 25%
(3) 45%
(4) 50%


Solution

The precentage of water absorbed is calculated as -

Final weight-Initial weightInitial weight×100

30 -2020 ×100 = 100020                           = 50%

Hence, the correct answer is option 4.

Science
Lakhmir Biology (2020, 2021)
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