SOLUTION: the mean age of four women is 19year 11month. When a fifth woman joins them, the average age of all five is 20year 7month. How old is the fifth woman?
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Question 966437: the mean age of four women is 19year 11month. When a fifth woman joins them, the average age of all five is 20year 7month. How old is the fifth woman? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! the mean age if four women is 19yr 11month.
When the fifth woman joins them, the average age of all five is 20yr 7month.
How old is the fifth woman.
:
Convert the ages to months
19(12) + 11 = 239 mon
20(12) + 7 = 247 mon
:
let x = age of the 5th woman in monts = 247
956 + x = 247 * 5
x = 1235 - 956
x = 279 month is the age of the 5th girl
Find the age in yrs using long division; 279/12
I got 23 yrs, 3 months
