If a, b and c can do a job in 20, 30 and 60 days respectively. in how many days a can do the work if b and c help him on every third day
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assisted by B and C on every third day
it means A's 2 days + (B&C)'s 1 day
from d 1st explanation u got
Work done in 3 days=(1/10 + 1/10)=1/5
dat is in 3 days=1/5 works
in ques "In how many days can A do the work"
now cross multiply..
(5*3) days=1 work..
1 work = 15 days...
it means A's 2 days + (B&C)'s 1 day
from d 1st explanation u got
Work done in 3 days=(1/10 + 1/10)=1/5
dat is in 3 days=1/5 works
in ques "In how many days can A do the work"
now cross multiply..
(5*3) days=1 work..
1 work = 15 days...
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