if a can finish work in 8 days,b can finish work in 13 days and c can finish work in 9 days. if they work together how many day will they take to finish the work
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Answered by
0
Step-by-step explanation:
a can finish work in 8 days
b can finish work in 13 days
c can finish work in 9 day
a+b+c=8+13+9
3=30
30÷3=10
if they work together 10 day will they take to finish the work
Answered by
1
Step-by-step explanation:
A's one day work =1/8
B's one day work=1/13
C's one day work =1/9
(A+B+C)'s one day work=1/8+1/13+1/9
=(add all of them)
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