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Instead of 10%, if the students spends 15% to study other subjects and the time is taken from the time scheduled to study mathematics and if he/she used to study 20 hours per day, then their difference of time for study mathematics per day is:
Answer & Solution
Correct Answer:
Option
C
Extra time taken = 15% - 10% = 5%
then difference in mathematics = 5%
∵ 100% = 20 hours
∴ 5% = 1 hours
then difference in mathematics = 5%
∵ 100% = 20 hours
∴ 5% = 1 hours
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