Table shows the number of girls enrolled in three schools A, B and C from 2017 to 2021.
| Year | A | B | C |
|---|---|---|---|
| 2017 | 200 | 150 | 100 |
| 2018 | 150 | 225 | 250 |
| 2019 | 275 | 150 | 199 |
| 2020 | 250 | 300 | 200 |
| 2021 | 300 | 250 | 275 |
The average number of girls enrolled in the year 2019 in all three schools is
A208 ✓ Correct
B200
C216
D225
Correct answer: (A) 208
Explanation
The average is 208, so the answer is 208.
In 2019 School A has 275, School B has 150 and School C has 199 girls.
The total is 275 plus 150 plus 199, which is 624.
The average is this total divided by the three schools.
So it is 624 divided by 3.
That is 208.
So the average is 208.
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