Question : The table given below shows the number of boys and girls in a school in 6 years.
| Years | Boys | Girls |
| A | 80 | 70 |
| B | 60 | 50 |
| C | 120 | 100 |
| D | 100 | 140 |
| E | 160 | 40 |
| F | 90 | 80 |
What is the ratio of the number of boys in years A and C together to the number of girls in years E and F together?
Option 1: 7 : 2
Option 2: 7 : 3
Option 3: 5 : 3
Option 4: 5 : 2
Correct Answer: 5 : 3
Solution :
Number of boys in year A = 80
Number of boys in year C = 120
$\therefore$ Number of boys in years A and C together = 80 + 120 = 200
Number of girls in year E = 40
Number of girls in year F = 80
$\therefore$ Number of girls in years E and F together = 40 + 80 = 120
So, the ratio of the number of boys in years A and C together to the number of girls in years E and F together = 200 : 120 = 5 : 3
Hence, the correct answer is 5 : 3.
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