How to find Last Non Zero Digit in a Factorial
October 1, 2020
Races and Games
October 5, 2022Introduction
Welcome! The aim of this topic is to help you solve the various kinds of problems on Clock. The first section is an introduction to Clocks where we have shared some important points about clocks. The exercises contain solved question and answers on Clocks. When solving exercises, we recommend you to try solving the problems on your own, then view the solution.
By the end of this post, you will learn to solve the following types of problems:
- Can you find the angle between hands of a clock at a particular time?
- Can you find the angle traversed by the hour hand from certain time to certain time?
- If a watch loses x minutes every hour, can you estimate when will it show correct time again?
Points to Remember
- A clock has two hands. The smaller hand is the hour hand, while the larger one is the minute hand.
- Speed of the hour hand = .5 degrees per minute.
- Speed of the minute hand = 6 degrees per minute
- At ‘n’ o clock, the angle of the hour hand from the vertical is 30n
- Hands of a clock meet at a gap of 65 5/11 minutes
- Hands of a clock meet 11 times in 12 hours and 22 times in a day
- Hands of a clock are perfectly opposite to each other 11 times in 12 hours and 22 times in a day
- Any other angle is made 22 times in 12 hours and 44 times in a day
- Hour hand traces 360º in 12 hours, while minute hand traces 360º in 1 hour.
- If the clock displays 7 : 05 am when the actual time is 7 : 00 am, the clock is said to be 5 minutes fast.
- If the clock displays 6 : 55 am when the actual time is 7 : 00 am, the clock is said to be 5 minutes slow.
