Table shows the number of persons in six cities A to F in 2020, with the male:female and literate:illiterate ratios.
| City | Persons | M:F | Literate:Illiterate |
|---|---|---|---|
| A | 500000 | 3:2 | 1:4 |
| B | 360000 | 4:6 | 4:1 |
| C | 280000 | 3:4 | 2:5 |
| D | 450000 | 5:4 | 3:2 |
| E | 500000 | 2:3 | 2:3 |
| F | 300000 | 2:1 | 7:3 |
The number of females in City B is what percent of the number of females in City C?
A138
B110
C120
D135 ✓ Correct
Correct answer: (D) 135
Explanation
City B's females are 135 percent of City C's, so the answer is 135.
City C has 2,80,000 persons with a male-to-female ratio 3:4.
So its females are 4 of 7 parts of 2,80,000, which is 1,60,000.
City B has 3,60,000 persons with a male-to-female ratio 4:6.
So its females are 6 of 10 parts of 3,60,000, which is 2,16,000.
As a percentage of City C this is 2,16,000 over 1,60,000 times 100.
That equals 135 percent.
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