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### Primary 6 Problem Sums/Word Problems - Try FREE

- Ratio: Think units and you're on your way! > Ratio Exercise 13 > 1
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**Question
1 of 4**

There are a certain number of pupils in a class.

If George is excluded, the ratio of the number of boys to girls in the class would be 4:1.

If Kelly is excluded, the ratio of the number of boys to girls in the class would be 5:1.

How many students are there in the class?

The correct answer is :

**31**