Ahmad solve 7 question of math in 9.8 minutes. How long does he take to solve 3 questions?
Answer: 4.2 minutes
Explanation
To find how long Ahmad takes to solve 3 questions:
Step 1: Time per question
Time per question = 9.8/7 = 1.4 minutes
Step 2: Time for 3 questions
1.4 × 3 = 4.2 minutes
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