The average age of 6 kids is 8 years The average age of 2 of them is 7.5 years. What is the average age of other 4 kids?
please tell?
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average age of 6 kids is 8 years
total age of 6 kids is 8×6 years=48 years
average age of 2 kids is 7.5 years
total age of 2 kids is 7.5×2 years=15 years
total age of remaining 4 kids is (48-15)years
=33 years
average age of other 4 kids is 33/4years=8.25 years
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