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How many times in 24 hours the hands (hour and minute) of a clock will be at right angles?

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Important Questions on Clock and Calendar

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
What will be the angle between the hands of a clock at 8:30?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

From 14 December, 2020, morning 4 O' clock to 15 December, 2020, morning 4 O' clock. How many times, the minute hand & hour hand of a clock will overlap.

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
Find the time between 9:00 and 10:00 when the clock needles coincide:
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

The time on two clocks is corrected at 10 AM on Sunday. One clock loses 3 minutes in an hour while the other gains 2 minutes in an hour. By how many minutes do the two clocks differ at 4 PM on the same day?

EASY
Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
What is the measure of the smaller of the two angles formed between the hour hand and the minute hand of a clock when it is 6:51 p.m.? 
MEDIUM
Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

The minute hand of a clock in the horizontal plane is on the number 6 of the clock and is pointing towards the west. If the hour hand is pointing towards the southwest, what time will the clock show exactly after three hours from now? 

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
How many degrees does the minute hand cover in the same time in which the second hand covers 180°? 
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
How many times in a day the hands of a clock are straight pointing opposite each other.
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
A clock is fixed on a horizontal table. At 3 pm its minute hand is pointing North. At 3.40 pm, the minute hand will point towards?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
Find the time between 9:00 and 10:00 when the clock needles are in opposite direction
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

What is the angle between the hands of a clock at 15 minutes past 5

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

At what time between 4 and 5 will the hands of a clock are mutually in opposite directions?

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock

At what time between 3 O'clock and 4'O clock are the hands of a clock are together?

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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
A clock gains 15 minutes every day. If it is corrected at 12 O'clock in the afternoon, then what time will it show at 4 O'clock in the morning?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
At what time between 8 and 9 will the hands of a clock be together
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
What will be the angle between the hour hand and the minute hand of a clock when the time is 3:27?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
Ishan wishes Irfan ‘Good Morning’ when the hour hand of a (measured clockwise) clock is positioned between 9 and 10. The angle between the two hands is 145°. The time shown by the clock is
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
At what time between 7 and 8 O’ clock will the hand of a clock be in the same straight line but, not together?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
At what time between 3PM and 4PM the angle between the minute and hour hands be nine degrees, the minute hand being ahead of the hour hand?
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Mental Ability>Numerical Reasoning>Clock and Calendar>Clock
A sprinter goes off the starting block for 100 m run and at that instant the second hand of a stop watch had pointed towards North. He touches the finishing line exactly after 12 seconds. In which direction did the second hand point when he just crossed the finishing line?