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Aman used to solve 4 questions in 12 minutes. After much practice, he is now able to solve 8 questions in 16 minutes. What is the percentage decrease in the time he has achieved to solve each question?

Answer» Aman used to solve 4 questions in 12 minutes. After much practice, he is now able to solve 8 questions in 16 minutes. What is the percentage decrease in the time he has achieved to solve each question?


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