Question

In a certain factory, a unit of work is completed by A in 4 minutes, by B in 5 minutes, by C in 6 minutes, by D in 10 minutes and by E in 12 minutes. (i) Determine their average rate of working? (ii) Determine the average number of units of work completed per minute? (iii) At this rate, how many units of work each of them, on the average, will complete in a six-hour day?

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

1/X=1/4+1/5+1/6+1/10+1/12=0.8

H. M=5/0.8=6.25 per unit. (Ans)

A can complete=360/4=90

B can complete=360/5=72

C can complete=360/6=60

D can complete=360/10=36

E can complete=360/12=30

so, on average they can complete=90+72+60+36+30/5=57.6 units(Ans)