- The clock represents two things- minutes and hour.
- The smaller one is hour hand .
- The larger one is minute hand.
- The minute hand makes one complete rotation (360°) in 60 minute .
- The angle traced by minute hand in 1 min = 360/60= 6°
- The hour hand makes one complete rotation (360°) in 12 hours.
- The angle traced by hour hand in 1 hour = 360/12= 30°
- The angle traced by hour hand in 1 min = 30/60= 1/2°
- The hands of the clock are opposite to each other for 11 times in 12 hours and 22 times in a day.
- Between 5 and 7 the hands are at opposite direction only once at 6’ O clock
- The hands of the clock coincide each other for 11 times in 12 hours and 22 times in a day.
- Between 11 and 1 the hands coincide only once at 12’ O clock
- The hands are at right angles 44 times in a day
- Angle between hour hand and minute hand is 30H - 11/2 M
H - hour , M - Minute
If the angle exceeds 180° subtract from 360° ignore the negative sign
- To get mirror image time upto 11’ O clock , subtract the given time from 11:60
- If the time is between 11 ’O clock and 1 ‘O clock , subtract the given time from 23:60
Questions
1.What is the angle between the two hands of a clock at 7.20 AM?
(Fireman Driver NCA 2020)
30H - 11/2 M
2018
1.What is the angle between the two hands of a clock when the clock show 4.40 PM ?
(Fireman Driver NCA 2020)
30H - 11/2 M
30*7 -11/2*20
100
100
2018
1.What is the angle between the two hands of a clock when the clock show 4.40 PM ?
(Women Civil Excise Officer 2018)
30H - 11/2 M
2.à´’à´°ു à´•്à´²ോà´•്à´•ിà´²െ മണിà´•്à´•ൂർ à´¸ൂà´šി à´’à´°ു à´¦ിവസം à´¤ിà´°ിà´¯ുà´¨്à´¨ à´¡ിà´—്à´°ി അളവ് à´Žà´¤്à´° ?
(Process Server - Judicial 2018)
മണിà´•്à´•ൂർ à´¸ൂà´šി
12 മണിà´•്à´•ൂà´±ിൽ - 360° à´¤ിà´°ിà´¯ുà´¨്à´¨ു
24 മണിà´•്à´•ൂà´±ിൽ (1 à´¦ിവസം) - 360*2= 720°
3.The angle between minute hand and hour hand of a clock when the clock shows 3 hours and 20 minutes
(Beat Forest Officer 2018)
30H - 11/2 M
30*3-11/2*20
20
4.à´’à´°ു à´•്à´²ോà´•്à´•് 10.10 à´Žà´¨്à´¨ സമയം à´•ാà´£ിà´•്à´•ുà´®്à´ªോൾ à´®ിà´¨ുà´Ÿ്à´Ÿ് à´¸ൂà´šിà´¯ും മണിà´•്à´•ൂർ à´¸ൂà´šിà´¯ും തമ്à´®ിà´²ുà´³്à´³ à´•ോണളവ് à´Žà´¤്à´°?
(STORE KEEPER-KSFDC 2018)
30H - 11/2M
30*4 -11/2*40
100
100
2.à´’à´°ു à´•്à´²ോà´•്à´•ിà´²െ മണിà´•്à´•ൂർ à´¸ൂà´šി à´’à´°ു à´¦ിവസം à´¤ിà´°ിà´¯ുà´¨്à´¨ à´¡ിà´—്à´°ി അളവ് à´Žà´¤്à´° ?
(Process Server - Judicial 2018)
മണിà´•്à´•ൂർ à´¸ൂà´šി
12 മണിà´•്à´•ൂà´±ിൽ - 360° à´¤ിà´°ിà´¯ുà´¨്à´¨ു
24 മണിà´•്à´•ൂà´±ിൽ (1 à´¦ിവസം) - 360*2= 720°
3.The angle between minute hand and hour hand of a clock when the clock shows 3 hours and 20 minutes
(Beat Forest Officer 2018)
30H - 11/2 M
30*3-11/2*20
20
4.à´’à´°ു à´•്à´²ോà´•്à´•് 10.10 à´Žà´¨്à´¨ സമയം à´•ാà´£ിà´•്à´•ുà´®്à´ªോൾ à´®ിà´¨ുà´Ÿ്à´Ÿ് à´¸ൂà´šിà´¯ും മണിà´•്à´•ൂർ à´¸ൂà´šിà´¯ും തമ്à´®ിà´²ുà´³്à´³ à´•ോണളവ് à´Žà´¤്à´°?
(STORE KEEPER-KSFDC 2018)
30H - 11/2M
30*10 - 11/2*10
300-55=245
Angle greater than 180 , subtract from 360.
360-245= 115°
5.What angle will the two hands of a clock make at 6.20 a.m. ?
(Secretary,Block Panchayat 2018)
30H - 11/2 M300-55=245
Angle greater than 180 , subtract from 360.
360-245= 115°
5.What angle will the two hands of a clock make at 6.20 a.m. ?
(Secretary,Block Panchayat 2018)
30*6-11/2*20= 180-110=70
6.à´’à´°ു à´•്à´²ോà´•്à´•ിൽ 4 മണിà´¯ാà´•ുà´®്à´ªോൾ മണിà´•്à´•ൂർ à´¸ൂà´šിà´•്à´•ുo à´®ിà´¨ിà´Ÿ്à´Ÿ് à´¸ൂà´šിà´•്à´•ുà´®ിà´Ÿà´¯ിà´²ുà´³്à´³ à´•ോണളവ് à´Žà´¤്à´°?
(WOMEN POLICE CONSTABLE NCA 2018)
30H
30 x 4= 120
7.If a mirror image shows 11.15, what is the exact time ?
(Civil Police Officer 2018)
23.60-11.15=12.45
8.à´°ാà´µിà´²െ 5.25 à´®ുതൽ ഉച്à´šà´¯്à´•്à´•് 12 മണിവരെ à´Žà´¤്à´° മണിà´•്à´•ൂർ
(Gardener Gr III 2018)
11.60-5.25=6.35
9.When the time shows 9 O'clock what is the angle between minute hand and hour hand ?
(Sergeant 2018)
30H - 11/2M
30*9
270
Angle greater than 180 , subtract from 360.
360-270= 90°
10.à´’à´°ു à´•്à´²ോà´•്à´•ിà´²െ സമയം à´…à´¤ിà´¨്à´±െ à´Žà´¤ിർവശത്à´¤ിà´°ിà´•്à´•ുà´¨്à´¨ à´•à´£്à´£ാà´Ÿിà´¯ിൽ 4.40 ആയി à´•ാà´£ുà´¨്à´¨ുà´µെà´™്à´•ിൽ à´•്à´²ോà´•്à´•ിà´²െ യഥാർത്à´¥ സമയം à´Žà´¤്à´°?
(Attender Gr.II 2018)
11.60-4.40=7.20
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