A truck moves at the speed of 90 km/hr after repairing and moves at th – McqOptions

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1.	A truck moves at the speed of 90 km/hr after repairing and moves at the speed of 80 km/hr before repairing. It covers x distance in 8 hours after repairing. How much time (in hours) will it take to cover 4x distance before repairing?
A.	48
B.	40
C.	36
D.	28
Answer» D. 28

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