Average of seven persons in a group is 30 years.the average age of five persos of this group is 31 years.what is the average age of the other two persons in the group
Answers
Answered by
0
Answer:
Step-by-step explanation:
Total sum of seven person=7*30=210
The sum of five person=5*31=155
The sum of other person=210-155=55
And the avg of other 2 person= 55/2=27.5
Answered by
0
Answer:
27.5
Step-by-step explanation:
average of 7 persons = 30
total = 30 * 7 = 210
average of 5 persons = 31
total = 31 * 5 = 155
age of other two persons = 210 - 155
= 55
average of the two persons = 55 / 2
=27.5
Similar questions