Maths A person who is at a distance of 90 km wants to reach his destination in 3 hours, he covers the first half of the distance at a speed of 20 km./h, what will be his average speed for the rest of the journey?
| Q.201692: A person who is at a distance of 90 km wants to reach his destination in 3 hours, he covers the first half of the distance at a speed of 20 km./h, what will be his average speed for the rest of the journey? |
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