clocks Topic-wise Practice Test, Examples With Solutions & More Shortcuts
clocks & IT'S TYPES
Useful for Management (CAT, XAT, MAT, CMAT, IIFT, SNAP & other), Bank (PO & Clerk) SSC (CGL, 10+2, Steno, FCI, CPO, Multitasking), LIC (AAO & ADO) CLAT, RRB, UPSC and Other State PSC Exams
clocks Topic-wise Types, Definitions, Important fact & Techniques with Short Tricks & Tips useful for all competitive Examinations
"CLOCKS" - VERBAL REASONING
Meaning & Definition, Concepts, MCQ Types, Shortcuts, Methods, Sloving Techniques, Tricks & Tips PDF
Posted By Careericons Team
Introduction to Clocks:
Clocks based verbal reasoning questions are very common in Bank, SSC, Railway and UPSC-based competitive exams.
In this type of question, you should understand the complete concepts & facts about the clock and its measuring properties. Questions based on clocks may seem confusing, but if you read them in parts, you can answer the questions easily with the help of structural diagrams, tabulations, shortcuts & formulas.
Basically, a clock is an instrument for showing and maintaining time. It is an electronic device that displays the time in seconds, minutes and hours.
On the basis of the concepts & functions of a clock, different types of verbal reasoning questions have been asked. The following article explains all about clock-based MCQs, their features & types, and useful shortcuts for solving them in an easy & faster way.
What is a Clocks?
"A clock is a device which indicates & maintains the time." It is an electronic instrument that represents the duration of hour, minute, and second. The standard clock contains three hands.
i.e., namely a short hand that indicates hour (hour hand), a long hand that indicates minutes (minute hand) and a thin long hand that indicates seconds (second hand).
What kind of measurements are taken using a Clocks?
A clock has the unit of measurement which is, an hour has the time duration of 60 minutes or 3600 seconds.
i.e., 1 hr = 60 mins = 3600 secs.
From this value, by using simple mathematics we can divide or separate the value as per our requirements in many ways. Get some more information's derived from the above form as,
|60 mins||=||1 hour|
|30 mins||=||Half an hour|
|15 mins||=||Quater of an hour|
|1 min||=||60 secs|
Similarly, the clock is also divided into degrees and angles. This is same as the previous hour, minute, second were made.
Now, The front part/ face or dial of a clock is divided along the circumference into 12 equal parts called hour spaces and 60 equal parts called minute spaces and 360 equal parts called second spaces.
|Here, 60 minute spaces||=||360°|
|1 minute space||=||6°|
|Similarly, 12 hour space||=||360°|
|1 hour space||=||30°|
|Similarly, 60 second space||=||360°|
|1 second space||=||6°|
Minute and Second space is same because, 1 min has 60 unit secs, 1 hour has 60 unit mins. Here, 60 becomes the common value. Then, the angle of movement of hands will also be same.
What are the Basic Conceptual Facts, Features & Functions of a Clocks in Verbal Reasoning?
- A follows the principle of relative speed or speed with steps.
All the three hands (i.e. hour, minute, second hand) move in the same directions (hands starts to move from mid 12 to 1, 2, 3… finally to the same position 12) commonly known as clockwise directions. Similarly the hands rotate in opposite directions (hands start to move from mid 12 to 11, 10, 9, 8… finally to the same position 12) known as anti-clockwise directions.
The minute hand moves around the whole circumference of the clock once in 1 hour.
The hour hand moves around the whole circumference of the clock once in 12 hour. That shows minute hand is twelve times faster than the hour hand.
Therefore, Minute hand = 12 x Hour hand
The distance between two consecutive numbers in the clock is equal to 5 min.
As already we knew that in an hour, the hour hand crosses 5 minute spaces while the minute hand crosses 60 min spaces.
∴ In 60 min, the minute hand gains (60 - 5) = 55 min over hour hand
∴ 1 min is gained by minute hand over hour hand in $60/55=12/11min.$
Top 10 Important Key Facts to Know about the Clocks in Verbal Reasoning:
In every hour, both the hands coincide once.
The hands are in the same straight line, when they are coincident or opposite to each other.
When the two hands are at right angles (90°), they are 15 min space apart.
When the hands are in opposite directions or straight line, they are 30 min space apart (half-an-hour).
Angle traced by hour hand in 12 h = 360°
Angle traced by hour hand in 1 h = $360°/12=30°$
Angle traced by hour hand in 1 min = $30°/60=1°/2$
Angle traced by minute hand in 60 min = 360°
Angle traced by minute hand in 1 min = $360°/60=6°$
The angle between the minute hand and hour hand of a clock is,
$θ = |11/2\text"m"-30h|$
Where, h = hours and m = minutes
Both hands of a clock occur at right angle twice in one hour, 22 times in 12 h and 44 times in 24 h.
Both hands of a clock occur in a straight line or are opposite once in one hour, 11 times in 12 h and 22 times in 24 h.
If a watch or a clock indicates 3:30, when the correct time is 3, it is said to be 30 min fast. On the other hand, if it indicates 2:45, when the correct time is 3, it is said to be 15 min slow.
What are the different types of verbal reasoning questions/ problems based on Clocks that are asked in various competitive examinations?
In this Clocks based verbal question, there are mainly classified into five types. The questions will involve the analysis of information showing the clock's hands & its properties.
Here in this, a set of values & information about the clock hands as position, timing, or some other data is been given and asked to find an angle, time gained or lost, repair the faulty clock, etc. So candidates are supposed to be familiar with the knowledge of different concepts clearly.
The 5 main types of clocks problems/ questions asked in the verbal reasoning section are,
- Finding Angle Between the Hands of a Clock,
- Finding the Position of the Hands of a Clock,
- Resolving Faulty Clock/ Adjusting Clock,
- Finding Time Gained or Lost by a Clock, &
- Comparing Different Timings of Clocks.
Generally, the questions based on clocks deal with the basic concept of the clocks & the simple mathematics. i.e., Units, Angle, Measurements, Simple Additions & Subtraction.
Here, we provide links to all five types of clock verbal problems one by one. You can get 1000+ problems of each 5 types of clocks questions with solved solutions. Also, get Shortcuts & Tricks PDF Download Links for each category & Online Live Quiz Links.
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