Problem 22 : The average age of a class of 20 boys is 14.95 years. The average age of the class is raised to 15 years by the arrival of a new student. How old is that new boy?
a) 14 y b) 15 y c)16 y d) 14-1/2 y
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Word problems /logical reasoning GRE, GMAT , CA, NTS, ICMA – Problem-22 ( average) - Videos
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