A can do a work in 15 days .a and b together can complete the work in 12 days. b alone can do it
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Answered by
1
Heya....
Here's your answer.....
A and B → 12 days
A → 15days
So, let's take LCM of 15 and 12. That's 60.
This 60 unit is the total work to be done.
So, A and B do (60/12) = 5 unit work/day …(1)
And, A does (60/15) = 4 unit work/day …(2)
(1)-(2) gives
B does (5–4)= 1 unit/day
So, Total days req. = (Total work)/unit per day
i.e, B can do it in (60/1)=60 days.
Thanks...!!!
XD
Sorry baby 'wink'
Answered by
0
Here is your answer
A do 1/15 part of work in one day
A+b do in 12 day
A+b do work in one day =1/12 part of work
1/15+b =1/12
B=5-4/60 [on taking lcm 12 and 15]
B =1/6o part of work in one day
B=60 day
So,b takes 60 days
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