SOLUTION: five year ago the average age of A.B.C and D was 45 year. with E joining them . the average of all the five is 49 year .the age E is.

Question 1001891: five year ago the average age of A.B.C and D was 45 year. with E joining them . the average of all the five is 49 year .the age E is.
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
five year ago the average age of A.B.C and D was 45 year.
Find the total of their ages five years ago
45 * 4 = 180
:
with E joining them . the average of all the five is 49 year .the age E is.
All 4 of them aged 5 yrs, therefore, their total increased by 20 yrs
Now the their total ages is 200
= 49
200 + E = 5(49)
E = 245 - 200
E = 45 yrs old
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