O A father is 7 times as old as his son. Two years ago
the father was 13 times as old as his own son.
What are their present ages?
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Answer:
Son's age=x, father's age =7x
2years ago, they were
Step-by-step explanation:
dad=(7x-2) and the son =x-2
2years ago they were:
dad=(7x-2) and the son =(x-2)
So we have:
7x-2=13(x-2)
7x-2=13x-26
7x-13x=-26+2
-6x=-24
x=-24/-6
x=4 ,the age of son now
7x=7×4=28, the age of father now
PROOF:
7×4-2=13(4-2)
28-2=52-26
26=26
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