7 years ago, Samir was 3 times as old as Deepak. In 4 years, Samir will be twice...【小站备考】

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Question 13 Enter your answer as an integer or a decimal in the answer box. Backspace to erase.

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7 years ago, Samir was 3 times as old as Deepak. In 4 years, Samir will be twice as old as Deepak. What is Deepak’s present age?_____

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