• 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 two new students who joined the group?
(a) 35.5
(b) 27.5
(d) 30
(c) 32
Answers
Answered by
3
The total age of 10 students with average 20 = 200
The total age of 12 students with average 22 = 264
The total age of 2 new students = 64
Their average =32
Answered by
2
Answer:
c) 32 is the correct answer .
Step-by-step explanation:
The total age of 10 students with average 20 = 200
The total age of 12 students with average 22 = 264
The total age of 2 new students = 64
Their average =32
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