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Flight n. JL-50 has scheduled takeoff at 4:30:00 pm. The distance between hangar to the runway is 2.3 km and average taxiing speed is 20 km/hr. At what time should plane leave from the hangar if it has to depart at the scheduled time and average operating time for a flight is 13 minutes on the airport?

Flight n. JL-50 has scheduled takeoff at 4:30:00 pm. The distance between hangar to the runway is 2.3 km and average taxiing speed is 20 km/hr. At what time should plane leave from the hangar if it has to depart at the scheduled time and average operating time for a flight is 13 minutes on the airport? Correct Answer 4:23:06 p.m.

Given:

The departure time of JL-50 is 4:30 p.m.

Distance between hangar and runway = 2.3 km

Average taxing speed = 20 km/hr

Average operating time for a flight = 13 minutes

Formula used :

Distance = Speed × Time

Calculation :

Time for taxiing = (2.3/20) hr

⇒ (2.3 × 60)/20 minutes

⇒ 2.3 × 3 minutes

⇒ 6.9 minutes

⇒ 6 minutes (0.9 × 60) seconds

⇒ 6 minutes 54 seconds

Total time required to takeoff = Time required for taxiing + Average operating time

⇒ 6:54 + 13

⇒ 19:54 minutes

⇒ Leaving time at hangar = 4:30:00 – 00:19:54

⇒ 4:10:06 p.m.

∴ The plane should leave the hangar by 4:10:06 p.m. to take off on scheduled time.

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