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. In a team of 10 persons, nine persons spent Rs. 40 each for their meal and the remaining one spent Rs. 9 more than the average expenditure of all the 10 persons. Tho total expenditure for their meal was :
