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

A cab driver travels first 80 km at 30 km/hr and the next 80 km at 40 km/hr. Find the average speed for the first 160 km of the journey is:


( A ) 35
( B ) 36
( C ) 34.3
( D ) 35.6

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