question_answer 8)

What fraction of a clockwise revolution does the hours hand of a clock turn through, when it goes from (a) 3 to 9 (b) 4 to 7 (c) 7 to 10 (d) 12 to 9 (e) 1 to 10 (f) 6 to 3

Answer:

(a) The situation from 3 to 9 on clock is given in the figure. Hence, from 3 to 9, hour hand turns through 1/2 of a revolution, clockwise. (b) The situation from 4 to 7 on clock is given in the figure. Hence, from 4 to 7, hour hand turns through 1/4 of a revolution, clockwise. (c) The situation from 7 to 10 on clock is given in the figure. Hence, from 7 to 10, hour hand turns through\[\frac{1}{4}\] of a revolution, clockwise. (d) The situation from 12 to 9 on clock is given in the figure. Hence, from 2 to 9, hour hand turns through \[\frac{3}{4}\] of a revolution, clockwise. (e) The situation from 1 to 10 on clock is given in the figure. Hence, from 1 to 10, hour hand turns through \[\frac{3}{4}\] of a revolution, clockwise. (f) The situation from 6 to 3 on clock is given in the figure. Hence, from 6 to 3, hour hand turns through \[\frac{1}{4}\] of a revolution, clockwise.