Question

raj so work in 5days while salim so the same word in 2 days if they work toghether in how many days they complete there work​

Answer 1

Answer:

It will take them 1.5 days to complete the work together.

Step-by-step explanation:

Raj's one day work is, $\frac{1}{5}$.

Salim's one day work is, $\frac{1}{2}$.

Compute the work done by the two in day as follows:

1-day work done by them together = $\frac{1}{5} +\frac{1}{2}=\frac{2+5}{10}=\frac{7}{10}$.

Compute the number of days it takes them to complete the work together as follows:

$No.\ of\ days=\frac{1}{1-day\ work\ done\ by\ them\ together}\\=\frac{1}{7/10}\\=\frac{10}{7} \\=1.43\\\approx1.5\ days$

Thus, it will take them 1.5 days to complete the work together.