A picnic was arranged by m students. The cost of the picnic was estimated to be y taka. Unfortunately, Z students withdrew their names from the picnic. How many more taka would each of the would each of the remaining students have to pay?
সমাধান
সঠিক উত্তর: Option C
At first, Each student had to give = y/m taka
After z students backing out,
Each students had to give = y/(m-z)
Thus, the amount the remaining students have to pay more = y/(m-z) - y/m
