At what time between 3 and 4 o’clock will the minute hand and the hour hand are on the same straight line but facing opposite directions ?
A) 3:15 2/8 B) 3:49 C) 3:49 1/11 D) 3:51
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Answer:
b. 3:49 is the correct answer
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Step-by-step explanation:
On straight line means 180 degree angle.
180 = 11/2 min – 30 hrs
180 = 11/2 m – 30 × 3
180 = 11/2 m – 90
(180 + 90) 2 = 11 m
m = 540/11 = 49 1/11 minutes.
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