A truck covers a distance 640 km in 10 h. A car covers the same distan – McqOptions

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1.	A truck covers a distance 640 km in 10 h. A car covers the same distance in 8 h. What is the respective ratio of speed of the truck to that of car ?
A.	3 : 4
B.	1 : 2
C.	4 : 5
D.	None of these
Answer» D. None of these

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