| Direction: A total of 39 thousand students appeared in an entrance examination from six cities, in which the number of boys was 12000. The following pie-charts show the distribution of the total students and of the total boys from these cities who appeared in the exam. | |
 Total students = 39000 |  Boys = 12000 |
A) 45%
B) 49%
C) 54%
D) 57%
E) 60%
Correct Answer: B
Solution :
Total number of students from City C \[=39000\times \frac{15}{100}=5850\] Total number of boys from City C \[=12000\times \frac{61.2}{360}=2040\] \[\therefore \]Number of girls from City \[C=5850-2040=3810\] Total number of students from City D \[=39000\times \frac{20}{100}=7800\] \[\therefore \]Reqd%\[=\frac{3810\times 100}{7800}=48.84\approx 49%\]
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