Reasoning Clocks || घड़ी short tricks || SSC CGL , CPO , CHSL , REASONING
43Reasoning Clocks || घड़ी short tricks || SSC CGL , CPO , CHSL , REASONING
Clock reasoning tricks in hindi | SSC CGL/CPO/CHSL | Railway | NTPC
clock reasoning | How to Solve Clock question within second | clock reasoning tricks in hindi | CLAT 2021 | SSC 2021| Clock Reasoning Short Tricks By Rajesh Choudhary Sir
#clockreasoning #clockreasoningtricksinhindi
A clock reasoning is an important topic on reasoning. Questions on Clock asked in many competitive examinations such as SSC, SSC CGL, SSC CPO, SSC CHSL, Railway, NTPC, and also the campus placement tests.
A clock has two hands : Hour hand and Minute Hand . The minute hand (M.H.) is also called the long and the hour hand (H.H.) is also called the short hand.
The clock has 12 hours numbered from 1 to 12.
Also, the clock is divided into 6 equal minute divisions. Therefore, each hour number is separated by five minute divisions.
Therefore,
• One minute division = = 6° apart . i.e. in one minute, the minute hand moves 6°.
• One hour division = 6° x 5 = 30° apart i.e. In one hour, the hour hand moves 30° apart.
• Also, in one minute, the hour hand moves 0.5° apart.
• Since, in one minute, minute hand moves 6° and hour hand moves , therefore, in one minute, the minute hand gains more than hour hand.
• In one hour, the minute hand gains × 60
= 330°
over the hour hand. i.e. the minute hand gains 55 minutes divisions over the hour hand.
The relative position of the hands
Any relative position of the hands of a clock is repeated 11 times in every 12 hours.
(a) When both hands are 15 minute spaces apart, they are at right angle.
(b) When they are 30 minute spaces apart, they point in opposite directions.
(c) The hands are in the same straight line when they are coincident or opposite to each other.
• In every hour, both the hand coincide once.
• In a day, the hands are coinciding 22 times.
• In every 12 hours, the hands of the clock coincide 11 times.
• In every 12 hours, the hands of clock are in opposite direction 11 times.
• In every 12 hours, the hands of the clock are at right angles 22 times.
• In every hour, the two hands are at right angles 2 times.
• In every hour, the two hands are in opposite direction once.
• In a day, the two hands are at right angles 44 times.
• If both the hands coincide, then they will again coincide after minutes. i.e. incorrect
clock, both hands coincide at an interval of 65 5/11 minutes.
• If a watch indicates 8.15, when the correct time is 8, it is said to be 15 minutes too fast.
On the other hand, if it indicates 7.45, when the correct time is 8, it is said to be 15 minutes too slow.
Practice Questions:
1. The angle between the minute hand and the hour of a clock when the time is 8.30, is
a. 80° b. 75° c. 60° d. 105° e. None of these
2. The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:
a. 0° b. 10° c. 5°
d. 20° e. None of these
3. How many times do the hands of a clock coincide in a day?
a. 20 b. 21 c. 22
d. 24 e. None of these
4. How many times in a day, the hands of a clock are straight?
a. 22 b. 24 c. 44
d. 48 e. None of these
5. How many times are the hands of a clock at right angle in a day?
a. 22 b. 24 c. 44
d. 48 e. None of these
6. How many times in a day, are the hands of a clock in straight line but opposite in direction?
a. 20 b. 22 c. 24
d. 48 e. None of these
7. The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:
a. 0º b. 10º c. 5º d. 20º
8. At 3.40, the hour hand and the minute hand of a clock form an angle of:
a. 120º b. 125º c. 130º d. 135º
9. The angle between the minute hand and the hour hand of a clock when the time is 8.30, is:
a. 80º b. 75º c. 60º d. 105º
10. How many times in a day, are the hands of a clock in straight line but opposite in direction?
a. 20 b. 22 c. 24 d. 48
11. What is the reflex angle mode by the hour and minute hand it the clock shows 9:15 ?
a. 165º b. 172.5º c. 112.5º d. 187.5º
This video covers the following types in Clock topics.
1. Questions on clock.
2. clock solution.
3. clock and calendar.
4. clock reasoning tricks in hindi.
5. clock reasoning.
6. clock tricks in hindi.
7. clock questions for railway.