An aeroplane covers a certain distance of 530 Kmph in 5 hours. to cover the same distance in 3 2/3 hours, it Must travel at a speed of
Choose the most appropriate option: A) 440 B) 540 C) 640 D) 722 E) 250

Rationale: "speed of aeroplane = 530 kmph distance travelled in 5 hours = 530 * 5 = 2650 km speed of aeroplane to acver 2650 km in 11 / 3 = 2650 * 3 / 11 = 722 km answer d"
Answer: D