Aptitude - Clock - Discussion
Discussion Forum : Clock - General Questions (Q.No. 14)
14.
At what time between 4 and 5 o'clock will the hands of a watch point in opposite directions?
Answer: Option
Explanation:
At 4 o'clock, the hands of the watch are 20 min. spaces apart.
To be in opposite directions, they must be 30 min. spaces apart.
Minute hand will have to gain 50 min. spaces.
55 min. spaces are gained in 60 min.
| 50 min. spaces are gained in |  |
60 | x 50 |  min. or 54 |
6 | min. |
| 55 | 11 |
| Required time = 54 |
6 | min. past 4. |
| 11 |
Discussion:
55 comments Page 3 of 6.
Pasumarthy said:
1 decade ago
@xyz, @abc let's say initially both are at 12, after 60 min hours is at 1 and minutes hand at 12. So, in 60 min they traveled 55 min spaces apart.
Nithisha said:
7 years ago
It's very simple.
As it was mentioned opposite(180°).
180° = (11/2*m)-30(hr),
180° = (11/2*m)-30(4),
m = 600/11,
m = 54.5454.
As it was mentioned opposite(180°).
180° = (11/2*m)-30(hr),
180° = (11/2*m)-30(4),
m = 600/11,
m = 54.5454.
(19)
Adafish said:
1 decade ago
Is there any formula if the hands are apart my minutes?
Say eg., at what time between 5 and 6 o'clock the hands are 3 minutes apart?
Say eg., at what time between 5 and 6 o'clock the hands are 3 minutes apart?
Vidur said:
9 years ago
Find the time between 5 and 6 o'clock when the two hands of the clock are 6 minutes spaces apart.
Can anyone help me to solve this?
Can anyone help me to solve this?
Upendra said:
1 decade ago
It clearly shows that,
2 hands between 4 and 5'O clock means........
time is 4hours 54 mins
Now plz give explanation ..........
2 hands between 4 and 5'O clock means........
time is 4hours 54 mins
Now plz give explanation ..........
Shree Hema said:
1 decade ago
Here we can use the formula:
theta=11(m)/2-30(h)
opposite direction means 180 degree; hour=4
180=11(m)/2-30(4)
m=54 6/11
theta=11(m)/2-30(h)
opposite direction means 180 degree; hour=4
180=11(m)/2-30(4)
m=54 6/11
Srikanth said:
1 decade ago
Here 30 min space apart means for opposite directions of minute hand and hour hand 30 min space apart.
Tunu agrawal said:
1 decade ago
Minute hand will have to gain 50 min. Spaces. From where did it come?
I m unable to understand it.
I m unable to understand it.
Bhojraj said:
1 decade ago
At what time between 5 'o' clock and 6 'o' clock, the hands of a clock will be 3 minutes apart.
Ash said:
7 years ago
Guys when to use (4h-11/2 *m) and when to use (11/2*m-4h). Can anybody please explain this?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers