Average Practice Test 2

Question : 30 of 40

Marks: +1, -0

The average of 60 numbers is 40. If two numbers, 69 and 70 are added, then the average of all the numbers become:

Solution:

The average of 60 numbers is 40
∴ Sum = 60 × 40 = 2,400
Sum of additional numbers = 2,400 + (69 + 70) = 2,539
∴ Required average

= {2,539}/62= 40.95

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