# 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:

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:

77 comments Page 1 of 8.
Aaditya Pant said:
1 year ago

None of this is required. I use a basic formula, which is the absolute value of 30H- 5.5m.

Therefore, Angle = (30x4) - (5.5x20).

= 120-110.

= 10 °.

Therefore, Angle = (30x4) - (5.5x20).

= 120-110.

= 10 °.

(8)

Deepti said:
1 year ago

Formula ( 30×Hrs - 11/2min),

= 30 × 4 - 11/2 × 20.

= 120 - 110.

= 10°.

= 30 × 4 - 11/2 × 20.

= 120 - 110.

= 10°.

(6)

Omkar said:
4 years ago

Just use this formula.

A = 30 * H - 5.5 * M.

Where;

A = angle.

H = hour.

M = minutes.

A = 30 * H - 5.5 * M.

Where;

A = angle.

H = hour.

M = minutes.

(6)

Anil said:
3 years ago

For 1 min the Hr hand moves 0.5,

So, the angle between Hr and Min hand is =0,

Since Min Hand moves 20 mins. We have 20*0.5=10.

Therefore 0 + 10 = 10.

So, the angle between Hr and Min hand is =0,

Since Min Hand moves 20 mins. We have 20*0.5=10.

Therefore 0 + 10 = 10.

(4)

Nitin said:
1 decade ago

By common sense it is clear that in 20 minutes the minute hand will move 20*6=120degree and the hour hand will move20*(1/2)=10degree.

Clearly min hand will be at 20 and hour hand will be 10degree apart.

Clearly min hand will be at 20 and hour hand will be 10degree apart.

(1)

Omkar said:
3 years ago

Short trick for these ans.

Take a ratio of 4.20=1:5 then there is a formula, when ur ratio is 1:5 then, divide minutes by 2

i.e 20Ã·2 = 10.

Also when ratio is 1:8 then (minute-hours) * 2

Also for the ratio 1:3, = minute * 4+minute Ã·2

Ratio 1:10, θ = minute*2.5.

1:4then θ= minute*2.

1:6 θ = minute Ã·2.

Take a ratio of 4.20=1:5 then there is a formula, when ur ratio is 1:5 then, divide minutes by 2

i.e 20Ã·2 = 10.

Also when ratio is 1:8 then (minute-hours) * 2

Also for the ratio 1:3, = minute * 4+minute Ã·2

Ratio 1:10, θ = minute*2.5.

1:4then θ= minute*2.

1:6 θ = minute Ã·2.

(1)

Ansh Shukla said:
4 years ago

How 1-hour cover 30°?

Can anyone clear this? please!

Can anyone clear this? please!

(1)

Anuranan said:
5 years ago

It very simple.

1 Hour cover =30 °

So, 60 minutes cover 30 °.

1 minutes cover 30/60 -_1/2 °.

20 minutes cover 20 (1/2) °.

Equal to 10 °.

1 Hour cover =30 °

So, 60 minutes cover 30 °.

1 minutes cover 30/60 -_1/2 °.

20 minutes cover 20 (1/2) °.

Equal to 10 °.

(1)

Premsai said:
9 years ago

I am not able to understand.

(1)

Greeshma said:
9 years ago

I think the formula you given (11M-60H)/2 is wrong, It is not coming can you explain it? For example the angle between the two hands at 6:00 it is giving wrong answer.

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