Answer :

A clock completes a clockwise revolution of 360° in a day.

**(a)** 3 to 9

By looking at the clock we can see when the hour hand goes from 3 to 9 it complete half of the revolution which is 180°.

Fraction = .

As we know 180° is the half of the 360° so it covers .

**(b)** 4 to 7

By looking at the clock we can see when the hour hand goes from 4 to 7 it makes a right angle which is of 90°.

Fraction = .

**(c)** 7 to 10

By looking at the clock we can see when the hour hand goes from 7 to 10 it makes a right angle which is of 90°.

Fraction = .

**(d)** 12 to 9

By looking at the clock we can see when the hour hand goes from 12 to 9 it basically covers three right angles which is of = 90 + 90 + 90 = 270°.

Fraction = 270/260 = 3/4

**(e)** 1 to 10

By looking at the clock we can see when the hour hand goes from 1 to 10 it basically covers three right angles which is of 270°.

Fraction = 270/360 = 3/4

**(f)** 6 to 3

By looking at the clock we can see when the hour hand goes from 6 to 3 it basically covers three right angles which is of 270°.

Fraction = 270/360 = 3/4

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