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Questions  >>  Olympiad-Math  >>  Class 6  >>  Math  >>  Percentages
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Q)

A train 280 metres long is running at a speed of 64 km/hr. If it crosses a tunnel in 45 seconds, then the length of the tunnel (in metres) is :


( A ) 500
( B ) 550
( C ) 520
( D ) 600

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