The average age of 10 persons is 60 years. If the total age of 8 persons be 488, then find the average age of the rest of the two persons.
(A) 50 (B) 52 (C) 56 (D) 60
(Imdad Uddin Mazumder)
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Answer:56
Step-by-step explanation:
Average=sum of age of 10 persons /total number
60=sum of age of 10 persons/10
sum of age of 10 persons=60x10=600
sum of age of 2 persons=sum of age of 10 persons-sum of age of 8 persons
=600-488=112
Average=sum of age of 2 persons/total number
=112/2=56
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