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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 of length 150 m long takes 40.5 seconds to cross a tunnel of length 300 m the speed of the train(in km/hr) is
( A ) 25 km/h
( B ) 65 km/h
( C ) 40 km/h
( D ) 50 km/h
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