A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?

Description (বিবরণ) :

প্রশ্ন: A contractor employed 30 men to do a piece of work in 38 days. After 25 days , he employed 5 men more and the work was finished one day earlier. How many days he would have been behind, if he had not employed additional men?

ব্যাখ্যা:

remaining no of days  =  38  - 25  =  13, the work was finished 1 day earlier.
So 35 men can complete the work in 12 days
$\therefore$ 1 ,, ,, ,, ,, $12\times 35$
$\therefore$ 30 ,, ,, ,, ,, $\frac{{\displaystyle 12\times 35}}{30}$ ,,
 =  14 days
The contractor would bd (14  -  13) Or, 1 day behind.