alleryA journey takes 120 km at a steady 60 km per hour. The time taken is:
A1.5 hours
B2 hours
C2.5 hours
D3 hours
Answer & Solution
Correct answer: B. 2 hours
1. Time is distance divided by speed.
2. Here the distance is 120 km and the speed is 60 km per hour.
3. So the time is 120 / 60.
4. That is 2 hours.
5. Checking the other way, 60 km per hour for 2 hours covers 120 km.
_Source: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.3 Inverse Proportion_
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