Kamau,Chelule and Wekesa are three casuals in a juakali enterprise.Chelule earns twice as much as Kamau and Wekesa earns sh.70 more than Chelule.

Class: Form 1

Subject: Mathematics

Topic: Rates, Ratios, Proportions and Percentages

Lesson Summary

Kamau,Chelule and Wekesa are three casuals in a juakali enterprise.Chelule earns twice as much as Kamau and Wekesa earns sh.70 more than Chelule.If their total earnings are sh.1,120,express the ratio of their earnings Kamau:Chelule:Wekesa in its simplest form.



Text Answer


Let Kamau =x
Chelule =2x
Wekesa =2x +70
X +2X +2X +70 =1120
5X +70 =1120
5X = 1120 – 70
5X =1050
X =10505=210
Kamau = 210
Chelule =420
Wekesa =490
Ratio =210:420:490(divide by 70 to simplify)
= 3:6:7

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