Riddhi left for school from her home at 7:00 am. The first one km of distance is travelled by her at the speed of 2.5 m/s by her bicycle. When she was at 150 metres away from school, she heard the bell for assemly and rushed at a speed of 7.5 m/s . Calculate, the time taken by her to reach the school.
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Answer:
7.5/150
then you can get the answer for this question
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She will reach the school in 20 seconds
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