1.

A, B and C can complete a piece of work in 24, 5 and 12 days respectively. Working together, they will complete the same work in ?

A. $\frac{7}{{24}}{\text{days}}$$
B. ${\text{3}}\frac{3}{7}{\text{days}}$$
C. ${\text{4 days}}$$
D. ${\text{3}}\frac{1}{{13}}{\text{days}}$$
Answer» E.


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