A and B can do a job in 6 days, B and C in 9 days, and A and C in 12 days. How much time
will they take to complete the job if they all work together? How long will each of them take
to do the job?
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Answers
Answered by
18
Answer:
days
Step-by-step explanation:
Let us give the job a value of 1.
A and B require 6 days to finish the job
⇒A and B finish of the job in 1 day.
A + B =
Similarly we can say that,
B + C = and
A + C =
Adding all of these,
A + B + B + C + C + A = + +
2A + 2B + 2C =
2(A + B + C) =
A + B + C =
Therefore, they can complete the work in days.
Answered by
4
Answer:
Is this question from the book "Essential ICSE Mathematics for Class 8"?
Step-by-step explanation:
Bcoz I am also having the same book as I am from Class-8.
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