Kamran can finish a job alone in 7.5 hours and
Munir can finish the same work alone in 5 hours,
if they work together, in how much time can they
finish the work? how 7.5 become 2/15
Answers
Answer: Munir can do 5 hour of hardwork
And Kamran can do 8 hours of hardwork
So Kamran did it slowly because he can
more than Munir. So if they do this
together I think it will be around 2.30
hours which includes Diffent time of
hardwork
in 3 hrs they finish the work together
Step-by-step explanation:
Kamran can finish a job alone in 7.5 hours
7.5 = 15/2 hrs
=> Kamran can finish a job alone in 15/2 hrs
=> Kamran 1 hr work = 1/(15/2) = 2/15
Munir can finish the same work alone in 5 hours,
=> Munir 1 hr Work = 1/5
Kamran + Munir together 1 hr work = 2/15 + 1/5
= (2 + 3)/15
= 5/15
= 1/3
Kamran + Munir together will complete work in 1/(1/3) = 3 hrs
in 3 hrs they finish the work together
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