Exams › SSC CGL (Prelims) › General

A helicopter covers a distance in 4 hours at 280 km/h. To complete the same journey in 50 minutes, what speed is needed?

1. 1344 km/h
2. 1400 km/h
3. 1500 km/h
4. 1600 km/h

Correct answer: 1344 km/h

Solution

Distance covered in 4 hours = 280 × 4 = 1120 km. To cover 1120 km in 50 minutes = 5/6 hour, required speed = 1120 ÷ (5/6) = 1344 km/h.

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