To complete a work A and B takesa 8 days,
B and C takes 12 days. A, B and C takes 6
days. How much time A and C will take
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Answer:
7 days
Explanation:
woman's 1 day's work = 1/70
1 Child's 1 day's work = 1/140
5 Women and 10 children 1 day work =
\begin{aligned}
\left(\frac{5}{70}+\frac{10}{140}\right) \\
= \frac{1}{7}
\end{aligned}
So 5 women and 10 children will finish the work in 7 days.
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