The mean age of 40 students in 16 years and the age of an other 60 students is 20 years. Find out
the mean age of all the 100 students taken to-gether. (Ans is 18.4) please give the solution
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Answer:
Sum of the ages of 40 students
= 16 × 40 = 640 years
Sum of the ages of other 60 students
= 60 × 20 = 1200 years
Sum of the ages of all 100 students
= 640 + 1200 = 1840 years
Therefore , The mean age of all 100 students
= 1840/100
= 184/10 = 18.4 years
Step-by-step explanation:
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