Question

A class with $p$ students has planned a picnic. $Rs.50$ per student is collected, out of which $Rs.1800$ is paid in advance for transport. How much money is left with them to spend on other items?

Answer 1

Given,
Total number of students $=p$

Money collect from each student $=Rs.50$

Total money collected $=Rs.50\times p=50p$

Advance money paid for transport $=Rs.1800$

Money left with them for other items=total amount collected- amount paid for transport

$=50p-1800$

Hence, money left with them to spend on other items is $50p-1800.$