The following pie chart shows the hourly distribution in a day (in degrees) of all the major activities of a student. Moreover, a day has 24 hours.
If he spends $$\frac{1}{3}rd$$ time of homework in Mathematics then the number of hours he spends in rest of the subjects in home work:
The total number of hours = 24
Time spent on homework = $$45^0$$
=$$\ \frac{\ 45}{360}\times\ 24$$ = 3 hrs
It is given that she spent $$\frac{1}{3}rd$$ time of homework in Mathematics.
The time she spent on Mathematics = $$\ \frac{\ 1}{3}\times\ 3$$
=1 hr
The time she spent on the rest of the subjects = 3-1 = 2 hr
B is the correct answer.
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