| Direction: The table shows the population of six different cities, ratio of males to females among them, percentage of adult males and adult females (Population is given in lakh): | |||||
| City | Population (in lakh) | Males : Females | % Adult males | % Adult females | |
| A | 7.8 | 7 | 6 | 62% | 65% |
| B | 3.6 | 5 | 4 | 70% | 72% |
| C | 4.5 | 2 | 3 | 68% | 64% |
| D | 6.8 | 9 | 8 | . 72% | 70% |
| E | 7.2 | 4 | 5 | 65% | 72% |
| F | 5.4 | 2 | 1 | 75% | 64% |
A) 1.98 lakh
B) 2.1 lakh
C) 2,42 lakh
D) 2.64 lakh
E) 3 lakh
Correct Answer: B
Solution :
Total adult males \[=7.8\times \frac{7}{13}\times \frac{62}{100}\] \[+3.6\times \frac{5}{9}\times \frac{70}{100}+4.5\times \frac{2}{5}\times \frac{68}{100}+6.8\times \frac{9}{17}\times \frac{72}{100}+\]\[7.2\times \frac{4}{9}\times \frac{65}{100}+5.4\times \frac{2}{3}\times \frac{75}{100}=2.604+1.4+1.224+\]\[2.592+2.08+2.7=12.6\]lakh \[\therefore \]Average \[=\frac{12.6}{6}=2.1\]lakh
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