Problem 1: A cricket player after playing 10 tests scored 100 runs in the 11th test. As a result, the average of his runs is increased by 5. The present average of runs is?
Average for 11 tests =100
Average = 5
Average+number*increment = Total
Problem 2: The average age of 20 boys is 14 years. A boy who is 16 years old left them and one new boy replaces him. Then the average becomes 13.8 years. Find the age of the new boy?
20*14 – 16+a= 13.8*20
a = 276-264 = 12
Problem 3: The average temperature of Monday, Tuesday and Wednesday was and that of Tuesday, Wednesday and Thursday was . If the temperature on Monday was , then the temperature on Thursday was?
T+W+TH = 33*3
TH = 32+9 =41