Number of people (in lakhs) in five cities A–E and ratio of three age groups I:II:III. (I: 0–<21; II: 21–<41; III: 41+.)
| City | People (lakh) | I:II:III |
|---|---|---|
| A | 14.4 | 1:3:2 |
| B | 16 | 2:3:3 |
| C | 19.2 | 1:1:2 |
| D | 12.8 | 3:1:4 |
| E | 12 | 1:3:1 |
The number of people of age group III in city D is ______ % more than the number of people of age group II in city B.
A7%
B6 1/4 %
C6 2/3 % ✓ Correct
D6%
Correct answer: (C) 6 2/3 %
Explanation
It is 6 and two-thirds percent more, so that is the answer.
City D has 12.8 lakh with ratio parts 3:1:4, so group III is four-eighths.
That is 6.4 lakh.
City B has 16 lakh with ratio 2:3:3, so group II is three-eighths, which is 6 lakh.
The excess is 0.4 lakh over 6 lakh.
That is 6 and two-thirds percent.
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