Average:
Average = Sum of observations / Number of observations
Average Speed :
Suppose a man covers a certain distance at x kmph and an equal distance at y kmph.
Then, the average speed druing the whole journey is [2xy/(x+y)] kmph.
Question 1
Q1. Average weight of 15 students increased by 2 kg when one student of 50 kg is replaced by a fat student. Then weight of the new student is ?
