Discussion :: Clock
- At what time between 3 and 4, the hands of a clock are straight and point in opposite directions?
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Answer : Option C
Explanation :
At 3 O' clock, the hands of the clock are 15 minute spaces apart. To be in straight line and in opposite directions, the hands must be 30 minutes spaces apart.
Now, the minute hand is 15 minute spaces behind the hour hand, so it has to gain 45 (15+30) minute spaces over the hour hand.
55 minute spaces are gained in 60 minutes by the minute hand
45 minutes will be gained in =
* 45 minutes
minutes past 3.
Solution 2:
Apply formula: (5H + 30) 
minutes past H, when H < 6
As per the question, H = 3 O' clock
Required time = (5*3 + 30) 
=(15+30) 
=45 *
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