Ann started reading at 4:00 p.m. And finished at 4:20 p.m. Through what fraction of a circle did the minute hand turn?

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emhelpme emhelpme · Answer 1 · 2017-04-25T21:31:50+02:00

4/12 or 1/3 because there is 12 fractions of a clock and 5x4=20

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Abdulazeez10 Abdulazeez10 · Answer 2 · 2022-04-15T13:34:33+02:00

The fraction of a circle through which the minute hand turned is 1/3

From the question, we are to determine the fraction which the minute hand turned

On a circular 12 hour clock, the angle between two consecutive numbers is 30°

From the given information,

Ann started reading at 4:00 p.m and finished at 4:20 pm.

The minute hand would have move from 12 to 1 to 2 to 3 and then to 4.

This means the minute has turned 4 × 30° = 120°

The fraction of a circle the minute hand turned would be = The angle turned by the minute hand / Measure of the total angle

Measure of the total angle = 360°

∴ The fraction of a circle the minute hand turned = 120° / 360°

The fraction of a circle the minute hand turned = 1/3

Hence, the fraction of a circle through which the minute hand turned is 1/3

Learn more on Fractions here: https://brainly.com/question/1235285