Aptitude - Clock - Discussion

Discussion Forum : Clock - General Questions (Q.No. 1)
1.
An accurate clock shows 8 o'clock in the morning. Through how may degrees will the hour hand rotate when the clock shows 2 o'clock in the afternoon?
144°
150°
168°
180°
Answer: Option
Explanation:

Angle traced by the hour hand in 6 hours = 360 x 6 ° = 180°.
12

Discussion:
95 comments Page 2 of 10.

Sayantan said:   3 years ago
Hey there guys,

It says 8pm to 2am so the duration is 6hrs.

So that we can consider it be like 6 (Hr):00 (Min).

Formula={M- (5*Hr+M/12) }*6.

Hence, Min =0 & hr is 6.
= (5*6+0/12) *6.
=30*6.
=180°.
Hope you understood.
(9)

RISHI said:   1 decade ago
HEY MARAN...HERE IS A ONE MORE METHOD 2 SOLVE DIS...

SEE WE HAVE TO FIND THE DEGREE @ 2p.m.
1 HR=30 DEGREES
SO THE GAP TIME BETWEEN 8a.m. to 2p.m. IS 6 HRS...
SO 6*30=180 DEGRESS...

I HOPE U UNDERSTOOD....

Fahim Mohammed said:   9 years ago
According to the problem, 1hour = 60'.
Then 6 hours = 360', hence 360'/12 hours = 30'.

The difference between 2 0'clock and 8 0' clock is 6 hours.
Therefore the solution is 30' * 6 hours = 180 degrees.

Senthil said:   1 decade ago
Each hour takes 180 degree to rotate.

That's very simple concept each clock takes a complete rotation to complete an hour. So one complete rotation denotes the angle of 180 degree.

AdityaGenius said:   1 decade ago
198 seconds
to cover up 4 intervals=6seconds
1 gap=1.5 sec
2*(1.5+3.0+4.5+6+7.5+9+10.5+12+13.5+15+16.5+0)=198 seconds
as first interval takes 0 second 5-1 take 6 seconds
6/4= 1.5

Somya said:   4 years ago
Hour hand rotate 360 degrees in 12 hours.
From 8:00am - To 2:00 pm = 6 hrs duration.
Hour hand rotate 360 degrees in 12 hours.
Then, Hour hand rotate 180 degrees in 6 hrs.
(6)

Atulya said:   8 years ago
Here the no 8 & 2 are opposite to each other & are lie in straight line. So the angle between 8 & 2 is 180 degree (as a st line make 180 degree betn two pt).

Alekhya said:   9 years ago
Gus total clock degree = 360.
The distance between 2 to 8 = 6,
Total hours in a day = 24,
Remaining hours without six hours is 12 (12+6 = 24).
So 360/12 * 6 = 180.

Pratiksha agarwal said:   1 year ago
From 8 am to 2 pm, the duration is 6 hrs.
6hrs means 6 x 60 = 360 min.

Hour hand moves 0.5 degrees in 1 min, so in 360 min it will move.
360 x 0.5 = 180 degrees.
(41)

Ranveer singh said:   9 years ago
Formula- 30H - 11/2 M.

Here hours (H) given 6 and minutes (M) 0
So, 30 * 6 - 11/ 2 * 0.
30 * 6 = 180.
All these type problems solved by this formula.


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