Question 624283: Junaid was 28 when his daughter Hafsa was born. If junaid is now three times as old as hafsa,how many years ago was he 5 times as old as Hafsa?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! Junaid was 28 when his daughter Hafsa was born.
If junaid is now three times as old as hafsa, how many years ago was he 5 times as old as Hafsa?
:
From the information given we know Jun is 28 yrs older than Haf, therefore
j = h + 28
:
Jun is now 3 times as old as h, therefore
j = 3h
replace j with (h+28)
h + 28 = 3h
28 = 3h - h
28 = 2h
h = 28/2
h = 14 yrs is Haf's present age
then
14 + 28 = 42 yrs is Jun's present age
:
"how many years ago was he 5 times as old as Hafsa?"
let y = no. of yrs ago that this is true
42 - y = 5(14-y)
42 - y = 70 - 5y
-y + 5y = 70 - 42
4y = 28
y = 28/4
y = 7 yrs ago Jun was 5 time Haf's age
:
:
See if this checks out
7yrs ago:
j = 35
h = 7; confirms our solutions
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