In an ordinary clock, the minute hand would have moved how many degrees over a period of exactly 2 hours and 20 minutes?
Answer & explanation
Correct answer: option 3
The correct answer is Option (3) → 840 degrees
The minute hand sweeps a full circle of 360° in 60 minutes, that is 6° a minute.
Two hours and twenty minutes is 140 minutes, so the hand turns through 140 × 6 = 840° — two full turns and another 120°.