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A train covers first 100 km in 4 hrs and next 200 km in 5 hrs. What is its average speed? |
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Answer» Answer:Let the speed in FIRST CASE be S1 Let the speed in SECOND case be S2 S1=100/4=25 KM/hr. S2=200/5=40 km/ hr. AVG speed=(S1+S2)/2 =(25+40)/2 =65/2 =32.5km/hr. Explanation: |
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