An aeroplane covers a certain distance of 420 Kmph in 6 hours. to cover the same distance in 4 2/3 hours, it Must travel at a speed of  Choices.
A) 580 Kmph
B) 550 Kmph
C) 540 Kmph
D) 530 Kmph
E) 520 Kmph
Speed of aeroplane = 420 Kmph   Distance travelled in 6 hours   = 420 Ã— 6 = 2520 Km   Speed of aeroplane to acver 2520 Km in 14/3   = 2520 Ã— 3/14 = 540 Km   ANSWER IS 540 Kmph
<result>C</result>
An aeroplane covers a certain distance of 420 Kmph in 6 hours. to cover the same distance in 4 2/3 hours, it Must travel at a speed of