What is the formula for clock problems?
Clock formula: 11/12. This is a very important point for solving aptitude questions on clocks. As minute hand covers one full circle i.e. 360 degrees in one hour, that means it travels 360/60 = 6 degrees/min. This 11/2 degrees will be useful in finding the angle between the two hands of the clock.
How do you solve problems with a clock?
Solved Examples The angle between the hour hand and minute hand is = 120-110 = 10 degrees. Example 2: The angle between the minute hand and the hour hand of a clock when the time is 3:30 is: Solution:At 4:00, hour hand was at 90 degrees. The angle between the hour hand and minute hand is = 165-90= 75 degrees.
How would you solve clock and calendar problems in aptitude?
Counting of Odd Days
- 1 ordinary year = 365 days = (52 weeks + 1 day.)
- 1 ordinary year has 1 odd day.
- 1 leap year = 366 days = (52 weeks + 2 days)
- 1 leap year has 2 odd days.
- 100 years = 76 ordinary years + 24 leap years = (76 × 1 + 24 × 2) odd days = 124 odd days.
- Number of odd days in 100 years = 5.
What is clock formula?
Clock Formula: 60-minute space = 360° = 1 hour. 1-minute space = 6° = 1 minute. 5-minute space = 6° x 5 = 30° = 5 minutes. Right Angle or Perpendicular = 15-minute spaces apart. Right Angle or Perpendicular = 22 times in 12 hours or 44 times in 24 hours (1 day)
How 55 minutes are gained in 60 minutes?
As you say, in one hour the minute hand moves 360∘, which the answer calls 60 minutes. In one hour, the hour hand moves 30∘, so the minute hand gains 330∘=55 minutes. In an hour the hour hand moves to a distance of only 5 minute spaces. But the minute hand moves to a distance of 60 minute spaces.
What is the angle traced by hour hand in 15 minutes?
Since eachhour corresponds to 30 degrees, we multiply 30 to get (37/4)(30) = 277.5 degrees.
How is clock related to math?
Clocks are used to measure time. A clock in general has 12 numbers written on it, from 1 to 12, an hour hand, and a minute hand. Clock angle problems relate two different measurements: angles and time. A method to solve such problems is to consider the rate of change of the angle in degrees per minute.
What is reflex angle in clock?
Obtuse angle Between 90° and 180° Straight angle Exactly 180° Reflex angle Between 180° and 360°
Which year has the same calendar as 1700?
Type 3: Solve Quickly Calendar’s Ques. (Identify the year having same calendar.)
| Year | 1700 | 1701 |
|---|---|---|
| Number of Odd days | 1 | 1 |
How are 55 min spaces gained in 60 minutes?
Answer: In 60 minutes, minute hand gains 55 minute spaces over the hour hand. (In 60 minutes, hour hand will move 5 minute spaces while the minute hand will move 60 minute spaces. In effect the space gain of minute hand with respect to hour hand will be 60 – 5 = 55 minutes.)
Why 55 minutes are gained in 60 minutes?
In one hour, the hour hand moves 30∘, so the minute hand gains 330∘=55 minutes. In an hour the hour hand moves to a distance of only 5 minute spaces. But the minute hand moves to a distance of 60 minute spaces. Thus the minute hand gains (60-5)=55 minutes on the hour.