Word problems /logical reasoning GRE, GMAT , CA, NTS, ICMA – Problem-20 (students age average) - Videos

Problem 20: The average age of 600 students in a class is 10.75, by enrolment of 40 new students the average age is lowered to 10.437 years. Find the average age of the new students;
a)6.0 b)5.75 c)5.15 d)5.50

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