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The hour hand of an ordinary clock would have moved how many degrees in a continuous period of 1230 minutes ?

Solution

✅ Correct Option: 3

The hour hand covers 360∘360^\circ in 12 hours, so it moves 0.5∘0.5^\circ per minute.

Angle =1230×0.5=615∘= 1230 \times 0.5 = 615^\circ.

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