Amit's father is 4 times as old as he is. After 20 years, his age will be twice that of Amit's. Find their present ages?
ashwinraikar77:
The ages are 10 of Amit & 40 of his father!
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let amit's age be x and his father' be y
y=4x
after 20 years
y+20=2(x+20)=2x+40
4x+20=2x+40
2x=20
x=10
y=40
therefore Amit's age is 10 and his father's is 40
y=4x
after 20 years
y+20=2(x+20)=2x+40
4x+20=2x+40
2x=20
x=10
y=40
therefore Amit's age is 10 and his father's is 40
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