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(a) east and turn clockwise to face north?

(b) south and turn clockwise to face east?

(c) west and turn clockwise to face east?

Answer :

(a) If we start from East and turn clockwise to face North, 3 /4 of a revolution is required.

(b) If we start from south and turn clockwise to face east, 3/4 of a revolution is required.

(c) If we start from west and turn clockwise to face east, 1/2 of a revolution is required.

- Q.1 What fraction of a clockwise revolution does the hour 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
- Q.2 Where will the hand of a clock stop if it (a) starts at 12 and makes 1 / 2 of a revolution, clockwise? (b) starts at 2 and makes 1 / 2 of a revolution, clockwise? (c) starts at 5 and makes 1 / 4 of a revolution, clockwise? (d) starts at 5 and makes 3 / 4 of a revolution, clockwise?
- Q.3 Which direction will you face if you start facing (a) east and make \(\frac{1}{2} \) of a revolution clockwise? z (b ) east and make\(1\frac{1}{2} \) of a revolution clockwise? z (c) west and make \(\frac{3}{4} \) of a revolution anticlockwise? (d) south and make one full revolution? (Should we specify clockwise or anticlockwise for this last question? Why not?)
- Q.5 Find the number of right angles turned through by the hour hand of a clock when it goes from (a)3 to 6 (b) 2 to 8 (c) 5 to 11 (d) 10 to 1 (e) 12 to 9 (f) 12 to 6
- Q.6 How many right angles do you make if you start facing (a) south and turn clockwise to west? (b) north and turn anti – clockwise to east? (c) west and turn to west? (d) south and turn to north?

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