39 students collected ₹ 525 each for picnic. It had 40 notes of ₹ 500 and remaining were ₹ 5 notes. How many ₹ 5 notes were there? (2020) \( \begin{array}{llll}\text { (1) } 95 & \text { (2) } 25 & \text { (3) } 45 & \text { (4) } 85\end{array} \)

To find out how many ₹ 5 notes there were, we first need to calculate the total amount collected by the students. If each of the 39 students collected ₹ 525, the total amount is: Total amount = Number of students × Amount collected by each student Total amount = 39 × ₹ 525 = ₹ 20,475 Next, we know there were 40 notes of ₹ 500. The total amount from these notes is: Amount from ₹ 500 notes = Number of ₹ 500 notes × Value of each note Amount from ₹ 500 notes = 40 × ₹ 500 = ₹ 20,000 Now, we can subtract the amount from the ₹ 500 notes from the total amount collected to find out how much is left for the ₹ 5 notes: Remaining amount = Total amount - Amount from ₹ 500 notes Remaining amount = ₹ 20,475 - ₹ 20,000 = ₹ 475 Finally, to determine how many ₹ 5 notes there are, we divide the remaining amount by the value of each ₹ 5 note: Number of ₹ 5 notes = Remaining amount / Value of each ₹ 5 note Number of ₹ 5 notes = ₹ 475 / ₹ 5 = 95 So, the answer is (1) 95.