19. In a class there 40 boys and their averageage is 16 years. On one – InterviewSolution

1.	19. In a class there 40 boys and their averageage is 16 years. On one day aged, 17 yearsleaving the class and another joining theaverage age becomes 15.875 years. The ageof the new boy isA. 12 yearsC. 15 yearsB. 14.5 yearsD. 18 years
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