Clock
Clock: Overview
This topic covers concepts such as Clock in Reasoning, Basic Structure of Clock, Facts of Clock, Mirror Image of Clock, Relative Speed of Clock and Fast and Slow Clock.
Important Questions on Clock
A software engineer has the capability of thinking lines of code in five minutes and can type lines of code in minutes. He takes a break for five minutes after every ten minutes. How many lines of codes will he complete typing after an hour?

At , the hour hand and the minute hand of an analog clock are at degrees with each other. After approximately how much time will they be at degrees with each other again?

The hour hand of a particular clock moves at half the speed, and the minute hand at times the speed of a regular clock. If this strange clock matches time with the regular clock at noon, what is the actual time when the strange clock next looks as shown here?

Which of the following statements would you consider to be TRUE about the hour and minute hands of analogue clocks?

The current time is minutes past in the afternoon. What will the angle be between the hour hand and the minute hand of the clock, hours and minutes from now?

A naughty kid plays with a clock kept on a table as shown below. She changes the hour and minute hands clockwise adding hours and minutes to the time and places the clock by rotating degrees anti-clock wise. Identify the option that shows the modified time?

What will be the angle between the minute and hour hands when the time is showing in the clock?

What is the angle between the minute hand and hour hand of a clock at ?

What will be the mirror image of the given clock image?

In a clock, the time is hrs min. Find out the mirror image of the time when the mirror is placed in front of the clock?

Select the Answer Figure that is the correct mirror image of the given figure when the mirror is held at the right side.

By looking in a mirror, it appears that it is in the clock. What is the real time?


In an alarm clock, the alarm hand because of mechanical defect moves faster every half hour. If the alarm is set for at , then alarm will ring at:


The time in the clock is , then find its mirror image.

The angle between the minute hand and the hour hand of a clock when the time is , is :

A bus for Delhi leaves every thirty minutes from a bus stand. An enquiry clerk told a passenger that the bus had already left ten minutes ago and the next bus will leave at 9.35 A.M. At what time did the enquiry clerk give this information to the passenger?

The time in the clock is , then find its mirror image.
