সকল সরকারী/বেসরকারী পরীক্ষার প্রশ্ন পেতে ক্লিক করুন গণিতের আইকিউ টেস্ট করতে ক্লিক করুন 
A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?
A train went 300 miles from city X to city Y at an average speed of 80 mph. At what speed did it travel on the way back if its average speed for the whole trip was 100 mph?
- ক. 120 mph
- খ. 125 mph
- গ. 133.33 mph
- ঘ. 137.5 mph
সঠিক উত্তরঃ 133.33 mph
এ সম্পর্কিত আরো প্রশ্ন দেখুন
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