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 I is more than 4 lakhs in exactly ______ city/cities.
AOne
BTwo ✓ Correct
CThree
DFour
Correct answer: (B) Two
Explanation
It is exactly two cities, so that is the answer.
Group I counts are 2.4, 4.0, 4.8, 4.8 and 2.4 lakh for A to E.
City C has 4.8 lakh, which exceeds 4 lakh.
City D also has 4.8 lakh, which exceeds 4 lakh.
No other city exceeds 4 lakh.
So exactly two cities qualify.
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