Ratio notation a:b and a:b:c

P6 Mathematics · Number & Algebra · 108 questions · difficulty D1–D5 · Singapore MOE-aligned

Sample questions

SAMPLE 1

In a ratio of 2:3, the first part is 10. What is the second part?

SAMPLE 2

A bag contains 3 red marbles and 5 blue marbles. What is the ratio of red marbles to blue marbles?

SAMPLE 3

The ratio of boys to girls to teachers in a group is 5:4:1. There are 100 people in total. How many boys are there?

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