The average age of a group of 10 students is 15 years . when 5 more students joined the group , the average age rise by 1 year. what is average age of the newly joined students?
Created: 5 years ago |
Updated: 9 months ago
best des
Let the sum of 5 new student’s age is x
Then according to question,
(150 + x)/15 = 16
= )150 + x = 240
= x = 90
Average of their ages = sum/number
= )90/5 = 18
Md Azizur Rahman
Founder of Satt
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