the ratio of present age of father and son is 1 ratio 2 if son is 20 year old find the father's age
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We have,
Let, percentage, 8x,3x
Then, after 10 year;
3x+108x+10=12
8x+10=6x+20
8x−6x=20+10
2x=10
x=210
x=5
∴ Present age of father,
=8x
=8×5
=40 years
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