Age of Rahul's father is 3 times Rahul's age now.After 15 years he will be twice the age of Rahul. Find their present age.

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  1. Getting late...let's see if we set this up correctly:
    F = 2R + 15 (I'm not quite sure about this sentence, but substitute and solve for one of the unknowns.)

    I chose F:
    3R = 2R + 15
    R = 15
    Substitute the value of R into one of the sentences and find F. 3R = 45 = F. Check in the other sentence. F = 2(15) + 15 = 45. Works. ( If I wrote the second sentence correctly.)

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