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1. A man travels for 2 hours at 30 miles an hour and he covers 60 miles in the next 3 hours . What is the average speed per hour for the entire trip?
- A. 18
- B. 18
- C. 18
- D. 18
Answer: Option B
Explanation:
লোকটি প্রথম 2 ঘণ্টা অতিক্রম করে = 30 × 2 = 60 মাইল
∴ Average speed = মোট দূরত্ব / মোট সময়
= ( 60 + 60)/(2 + 3)
= 120/5
= 24 mph
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