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#1. A car travels 60 km in 1 hour and 80 km in next hour. Average speed =?
#2. A man travels 120 km at 60 km/h and returns at 40 km/h. Average speed =?
#3. A car travels 150 km in 3 hrs and 150 km in 5 hrs. Average speed =?
#4. A man walks 10 km at 5 km/h and 20 km at 10 km/h. Average speed =?
#5. A car travels first half distance at 40 km/h and second half at 60 km/h. Average speed =?
