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Rate & work problems

How to solve rate & work problems

Math & Logic

Work out distance, speed, time, and shared-work rates without a calculator.

Worked examples

Answers shown

Follow the steps on real items before you practise.

Example 1Difficulty 1

A car travels at 30 km/h for 2 hours. How far does it go, in km?

Answer: E. Here is why:

  1. Distance = rate × time = 30 × 2 = 60 km.
Example 2Difficulty 1

A truck travels at 90 km/h for 4 hours. How far does it go, in km?

Answer: E. Here is why:

  1. Distance = rate × time = 90 × 4 = 360 km.
Example 3Difficulty 1

A ferry travels at 80 km/h for 2 hours. How far does it go, in km?

Answer: C. Here is why:

  1. Distance = rate × time = 80 × 2 = 160 km.