Aptitude - Clock - Discussion

Discussion Forum : Clock - General Questions (Q.No. 8)
8.
The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:
10°
20°
Answer: Option
Explanation:

Angle traced by hour hand in 13 hrs = 360 x 13 ° = 130°.
3 12 3

Angle traced by min. hand in 20 min. = 360 x 20 ° = 120°.
60

Required angle = (130 - 120)° = 10°.

Discussion:
80 comments Page 5 of 8.

Reddilavan said:   2 decades ago
angle=(11/2)*min-30*hrs
apply this formula you can get the answer ......

Rahul gupta said:   8 years ago
For 4:20.

Basic formula and h and m indicate hours and mint.

(H-m÷5)*30-(m÷2).

Gaurav Verma said:   1 decade ago
We can write 4:20 in fractional form 4(20/60).
Means,
(60 *4 + 20)/60.

Equals,
13/3.

Mukram Khan said:   9 years ago
When the time in watch 01:30 what is the angle of needles?

Can anyone solve this?

Shakir said:   8 years ago
12 hr = 360°.
1 hr = 30°.
1 min = 1/2°.
20 min = 1*20/2 = 10°.

ANUJ said:   1 decade ago
we can convert it in hours as:
20min.=1/3hours
so total hours as 4+1/3=13/3

Prasad said:   1 decade ago
Apply the formula suggested by Reddilavan..
ie: Angle = 30Hr-(11/2)Min

Aditi pawar said:   5 years ago
12 hour covers 360 degrees.
Then 360/12 = 30 degrees.
That is one hour.
(1)

Deepti said:   3 years ago
Formula ( 30×Hrs - 11/2min),
= 30 × 4 - 11/2 × 20.
= 120 - 110.
= 10°.
(17)

Karthiga said:   1 decade ago
To Anil.

Will the formula be applicable to all the problems sir?


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