SOLUTION: The average age of 16 student is 15 year. When 1 of a boy of age 18 years leads. What will be the average age of remaining 15 student

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Question 941386: The average age of 16 student is 15 year. When 1 of a boy of age 18 years leads. What will be the average age of remaining 15 student
Answer by srinivas.g(540) About Me  (Show Source):
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sum of ages of all 16 students = average * no of students
= 15*16
=240
one of the boys of age 18 y left
then sum of ages of remaining students = 240-18
= 222
average of remaining 15 students = +sum+of++ages+of+remaining+students+%2F+15+
=+222%2F15
=14.8
Result : 14.8 years