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n200080 [17]
3 years ago
7

the present age of father and son is 7:2. after 5 yrs the age of son is 37% the age of his father. what is the present age of fa

ther
Mathematics
1 answer:
zvonat [6]3 years ago
8 0
Let present ages of father be x and of son is y years

x/y  = 7/2, 2x=7y, y=2x/7
(y+5)=37/100*(x+5)
(2x/7+5)=37/100*(x+5)
(2x+35)/7=(37x+185)/100
200x+3500=259x+1295
259x-250x=3500-1295
59x=2205
x=37.37 years
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