The average age of a group of 8 persons was 14 years. A person with age 28 years left the group and a new person with age 16 years joined the group. Find the new average age of the group. *
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Answer:
44
Step-by-step explanation:
Given:
Average age of the group = 28
Formula
Average = Sum of observation/Number of observation
Calculation:
Let the age of new person be x
Total age of 8 people = Age of 7 people + age of new person
=> 8 x 30 = 7 x 28 + x
=> x = 240-196 = 44 years
Therefore, age of new person is 44 years
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