Question:
At 5.50 p.m., Mr Diresh left his office to drive 50 km back to his house. He had to pass by a factor and a library. The library was 45 km away from his office and was exactly in the middle of the factory and his house. It was 6.20 p.m. when he passed by the factor. What was the average speed that he was driving at from his office to the factory?
Solution:
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