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Question 1
Tom’s father is thrice as old as Tom. 10 years ago Tom’s father’s age was 7 times his age. What is Tom’s current age?
Solution
The correct option is C.
Let the Tom’s current age = $$x$$
Tom’s father current age =$$3x$$
Form question, $$7(x-10)=3x-10$$
$$\implies$$ $$7x-70=3x-10$$
$$\implies$$ $$4x=60$$
$$x=15years$$
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