A group of 5 people can do a piece of work in 6 hours.Calculate the time a group of 8 people,working at half the rate of the first group would take to complete the same work.

Class: Form 1

Subject: Mathematics

Topic: Rates, Ratios, Proportions and Percentages

Lesson Summary

A group of 5 people can do a piece of work in 6 hours.Calculate the time a group of 8 people,working at half the rate of the first group would take to complete the same work.



Text Answer


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8 x12× y= 30
4y = 30 (divide by 4)
Y = 304= 7.5 hours

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