Question

Ten players of the Australian team made an average of 63 runs and ten players of the indain team made an average of 77 runs . Calculate the average run made by both the teams.

Answer 1

let x be the total runs made by Australlia and y be the total runs made by India
avg. runs made by Australlia=63
x/10=63
x=630
avg. runs made by India=77
y/10=77
y=770
now avg. runs made by both the teams= (770+630)/20=1400/20=70
OR
avg runs made by both the teams= (63+77)/2=140/2=70

Answer 2

runs scored by both batsmen of respective teams are 63+77=140.total no of batsmen are 20 .the average run made by both the teams are 140/20=70