M4maths Previous Puzzles

30 Mar 2011 average

What will be the average of averages of marks of five students given below
1) 56, 67, 74, 85, 69
2) 48, 36, 40, 59, 52
3) 91, 86, 59, 73, 81
4) 50, 60, 73, 82, 49
5) 50, 57, 64, 71, 74

OPtion

1) 64.24
2) 64.62
3) 64.96
4) 65.48
5) 65.46
6) 65.42
7) 66.48
8) 66.32
9) 66.84
10) 67.46

Solution

sum of all the marks = 1606
thus average = 1606/25
= 64.24

Correct Option: 1 Best Solution (0)