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 ratio between the number of girls enrolled in School C in the year 2020 and the total number of girls enrolled in School A and School B together in the same year is
A11:3
B3:11
C4:11 ✓ Correct
D4:7
Correct answer: (C) 4:11
Explanation
The ratio is 4 to 11, so the answer is 4 to 11.
In 2020 School C has 200 girls enrolled.
In 2020 School A has 250 and School B has 300 girls.
So A and B together have 250 plus 300, which is 550.
The ratio is 200 to 550.
Dividing both by 50 gives 4 to 11.
So the ratio is 4 to 11.
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