The average age of a group of 10 students was 20. The average age increased by 2 years when two new students joined the group. What is the average age of the group. What is the average age of the two new students who joined the group?
Created: 4 years ago |
Updated: 2 years ago
best des
Total age of 10 students = 20×10 = 200
Total age of 12students = (20 + 2)12 = 264
∴ age of 2 new students = 264 - 200 = 64
average = 64/2 = 32
Md Azizur Rahman
Founder of Satt
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