Question

How many times clock makes 90 degree between 1 pm to 10 10pm?

Answer 1

Yes, but a more “mathematical” approach might be this: In a 12 hour period, the minute hand makes 12 revolutions while the hour hand makes one. If you switch to a rotating coordinate system in which the hour hand stands still, then the minute hand makes only 11 revolutions, and so it is at right angles with the hour hand 22 times. In a 24 hour day you get 2×22=44.

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Answer 2

Answer:

clock makes 90 degree 4times between 1pm to10 pm