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Olympiad-Math
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Class 9
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Everyday Mathematics
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Q)
A train covers a distance in 50 min, if it runs at a speed of 48kmph on an average. The speed at which the train must run to reduce the time of journey to 40min will be
( A ) 55 min
( B ) 70 min
( C ) 45 min
( D ) 60 min
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