The table shows the number of employees preferring their own vehicle, and the percentage preferring Metro and Bus, for companies A to E. There are only three modes of transport.
| Company | Own Vehicle | Metro (%) | Bus (%) |
|---|---|---|---|
| A | 184 | 68 | 24 |
| B | 78 | 60 | 35 |
| C | 384 | 55 | 30 |
| D | 182 | 70 | 16 |
| E | 220 | 72.5 | 15 |
What is the average number of employees in companies A, B and D?
A1850
B1750
C1620
D1720 ✓ Correct
Correct answer: (D) 1720
Explanation
The average is 1720, so the answer is 1720.
The total for A is 184 divided by 8%, which is 2300.
The total for B is 78 divided by 5%, which is 1560.
The total for D is 182 divided by 14%, which is 1300.
Their sum is 2300 plus 1560 plus 1300, which is 5160.
The average is 5160 divided by 3, which is 1720.
Each total is found from the own-vehicle count and its percentage before averaging.
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