Clock and Calender
Ordinary Year
An ordinary year will be having 365 days in a year.
Leap Year
An ordinary year will be having 366 days in a year.
Odd Days
Number of days which are more than complete week in a given period of time.
Couting odd days
1 ordinary year = 365 days
= 52 weeks + 1 day
1 leap year = 366 days
= 52 weeks + 2 days
To find the year after which the calendar repeats after a year x, from year X, count years till the number of odd days is 0, the next year will have same calendar as X.
The minute hand gains 55 minutes over the hour hand (in 60 minutes)
The minute and hour hands coincide 22 times in one day
The hands are in the same straight line when they are opposite to each other, they are 30 minues apart.
When two hands are at right angles they are 15minutes apart
In every hour both the hands conicide once.
The hands are in the same straight line when they conicide or in opposite to each other.
If a watch indicate 8.15 but the actual time is 8.00 then it is 15 min too fast.
If a watch indicate 8.00 but the actual time is 8.15 then it is 15 min too slow.