Average Practice Test 6

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Question : 23 of 40

Marks: +1, -0

The average age of 45 persons is decreased by

1/ 9

year when one of them age 60 years is replaced by a new person. What will be the age of the new person?

56 years
57 years
52 years
65 years
55 years

Solution:

Age of new person

=(60-45×1/9)\year

= 55 years

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