A plane left 30 minutes later than the scheduled time and in order to – McqOptions

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1.	A plane left 30 minutes later than the scheduled time and in order to reach the destination 1500 km away in time, it had to increase the speed by 250 km/hr from the usual speed. Its ususal speed is
A.	478 km/h
B.	550 km/h
C.	600 km/h
D.	750 km/h
Answer» E.

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