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प्रश्न
I travel a distance of 10 km and come back in `2 1/2` hours. What is my speed?
उत्तर
Total distance covered = 10 km + 10 km = 20 km
Time taken = `2 1/2=5/2` hours
Speed = `"Distance"/"Time"`
= `20/(5/2)`
= `(20xx2)/5` km/hr
= 8 km/hr
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