Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 11)
11.
How many times are the hands of a clock at right angle in a day?
Answer: Option
Explanation:
In 12 hours, they are at right angles 22 times.
In 24 hours, they are at right angles 44 times.
Discussion:
80 comments Page 5 of 8.
Shaikazharuddin said:
5 years ago
Thanks all for explaining.
Pooja said:
1 decade ago
In 1 hour 2 times right angles are formed so in 24 hour it will be 48 times formed but 2 will be common.
Raju said:
1 decade ago
Actually in general for every hour the right angle comes in two times.
So, the answer should be 2*12*2 = 48 times.
But the logical thing here is for 2 o clock and 3 o'clock, one right angle coincides,
Similarly for 8 and 9 o'clock another right angle coincides.
So, the final answer is 48-2 = 44
So, the answer should be 2*12*2 = 48 times.
But the logical thing here is for 2 o clock and 3 o'clock, one right angle coincides,
Similarly for 8 and 9 o'clock another right angle coincides.
So, the final answer is 48-2 = 44
Tarun parihar said:
1 decade ago
3:00 and 9:00 are common so in 12 hours is 22 time or in 24 hours is 44 times.
Naga jyothi said:
1 decade ago
For example let we consider 12 clock we have 2 right angles i.e. 12.15 and 12.45.
Ranjani said:
1 decade ago
How the two hands are in right angle two times an hour? Kindly help me.
Bharathveer reddy said:
1 decade ago
Generally for every 1 hr at two points it makes right angles.
But between 2:00 to 4:00 we get 3 right angles (approx 2:25, 3:00, 3:30) instead of 4 times.
Similarly between 8 and 10.
So we get 22 for 12 hrs and 44 for 24 hrs.
But between 2:00 to 4:00 we get 3 right angles (approx 2:25, 3:00, 3:30) instead of 4 times.
Similarly between 8 and 10.
So we get 22 for 12 hrs and 44 for 24 hrs.
Hari said:
1 decade ago
Its not 8 o'clock and 2 o'clock its 1 o'clock and 2 o'clock that makes right angle one time. So it is 22 times for 12 hours. And 44 for 24 hours.
Sanket said:
1 decade ago
Hand of clock made 0 and 180 degrees 22 times in a day and every other degree 44 times.
Babita pandey said:
1 decade ago
I think the true answer is 48 because the min and the hour hand make 2 right angles in 1 hour. According to this they both made 48 right angles in 24 hours.
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