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2. Father is 5 times as efficient than the son and can do work in 40 days earlier.In how many days can they do work together?
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- It means father takes 10 days to complete work and son takes 50 days to complete work.
Together they complete work in 1/ ( 1/10 +1/50) = 50/6 = 25/3 days. - 12 years agoHelpfull: Yes(34) No(4)
- 5=x/x-40
x=50 - 12 years agoHelpfull: Yes(2) No(4)
- m-5times(%efficient).... D-40days(days earlier) T=(mD)/((m^2)-1).... answr(200/24)=8.33days
- 12 years agoHelpfull: Yes(1) No(1)
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