The average age of 40 student of a class is 15 year. when 10 new students are admitted, the average is increased by 0.2 years. find the average age of new students?
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Sum of the ages of 40 students 40*15 = 600
Sum of the ages of 40+10 students 50*15.2 = 760
Sum of the ages of 10 new students = 760-600= 160
Average 160/10 = 16 yrs
Sum of the ages of 40+10 students 50*15.2 = 760
Sum of the ages of 10 new students = 760-600= 160
Average 160/10 = 16 yrs
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