The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?
Q1. The average of the marks of 12 students in a class is 36. If the marks of each student are doubled, find the new average?
Answer: 72
Explanation: Doubling each mark doubles the total sum, so the average also doubles: 36 × 2 = 72.