A and B can do a work in 12 days, B and C can do the same work in 15 days and A and C
can complete the work in 20 days. In how many days A, B and C working together can
complete the whole work?
with steps please
i will mark as the brainliest if with steps
Answers
Answer:
10 days
Explanation:
Number of days taken by A & B to complete work = 12 days
Number of days taken by B & C To complete same work = 15 days
Number of days taken by A & C to complete Same work = 20 days
L. C. M of 12, 15 & 20 = 60
Number of unit done by A & B
=60/ 12 = 5
Number of unit done by B & C
=60/15 = 4
Number of unit done by A & C
=60/ 20 = 3
Number of days taken by A , B and C together
[Next step I had write on paper I had sent you can see]
Answer:
Pls mark me as brainliest
Explanation:
A+B(1day's) = 1/12 work
B+C(1day's) = 1/15 work
A+C(1day's) = 1/20 work
Adding all the above
2 (A+B+C) (1day's) = 1/12 + 1/15 + 1/20
2 (A+B+C) (1day's) = (5+4+3)/60
2 (A+B+C) (1day's) = 12/60
2 (A+B+C) (1day's) = 1/5
:. (A+B+C) (1day's) = 1/10
Hence, A,B and C can complete the whole work in 10 days.
Pls mark me as brainliest