Question

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​

Answer 1

a)12 b)24 c)24 d) 12 e)36 f)24

Explanation:

right angle = 90 degree

15 minutes = 90 degree

1 hour = 4 right angles

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