| Directions: Refer to the pie-charts and answer the given questions. [RRB (Officer) Grade B 2015] |
| Distribution of total number of members |
| (both male and female) in 5 health clubs in 2008 |
| Total number = 4200 |
 |
| Distribution of total number of male members in 5 health clubs in 2008 |
| Total number = 2400 |
 |
| What is the average number of female members in health clubs C, D and E? |
A) 374
B) 376
C) 372
D) 392
E) 384
Correct Answer: C
Solution :
| Number of females in C |
| \[=4200\times \frac{35}{100}-2400\times \frac{33}{100}\] |
| \[=1470-792=678\] |
| Number of females in \[D=4200\times \frac{15}{100}-2400\times \frac{12}{100}\] |
| \[=630-288=342\] |
| Number of females in \[E=4200\times \frac{8}{100}-2400\times \frac{10}{100}\] |
| \[=336-240=96\] |
| \[\therefore \]Required average \[=\frac{678+342+96}{3}=\frac{1116}{3}=372\] |
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