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Aptitude - Clock Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Clock. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - The two hands of a clock will be together between h and (h+1) o'clock at
A - (60/11)h minutes past h o' clock
B - (50/11)h minutes past h o' clock
Answer : A
Explanation
At h o' clock, the minutes hand is 5 h minute spaces behind the hour hand. The minute hand gains 55 min spaces in 60 mins. ∴ The minute hand will gain 5h minute spaces in 60/55 * 5h = 60h/11 minutes. ∴ The two hands will be together between 'h' and 'h+1' o' clock at (60/11)h minutes h o' clock.
Q 2 - Find the time between 8 and 9 o' clock will the hands of a clock be in the same straight line but not together.
Answer : B
Explanation
At 8 o? clock, the two hands are 20 min spaces apart. To be in the same straight line but not together, they will be 30 min spaces apart. So, the minute hand will have to gain (30-20) = 10 minute spaces over the hour hand. = 60/55 * 10 = 120/11 ∴The hands will be in the same straight line but not together at 120 min past 8.
Q 3 - The minute hand of a clock overtakes the hour hand at interval of 65 minutes of the correct time. How much a day does the clock gain or lose?
Answer : C
Explanation
In a correct clock, the minute hand gains 55 min spaces over the hour hand in 60 minutes. To be together again, the minute hand must gain 60 minutes over the hour hand. 55 min are gained in 60 min 60 min are gained in (60/55)*60 = 720/11 But they are together after 65 min. ∴Gain in 65 min = (720/11 ? 65) = 5/11 Gain in 24 hours = [5/11 * (60*24)/65] min = 440/43 min = 10.23 minutes. ∴The clock gains 10.23 minutes in 24 hours.
Q 4 - Find the angle between the two hands of a clock at 5:30 PM.
Answer : A
Explanation
At 5:30 PM, the minute hand is at 6 and hour hand is past 5 but behind 6. In 60 minutes, the hour hand moves ahead by 30°. ∴ In 30 minutes, hour hour hand moves ahead by = 30*(30/60)° = 15° Angle between 5 and 6 hour spaces = 30°. Hence, angle between the two hands at 5:30 PM = (30 - 15) = 15°.
Q 5 - A clock is begun at twelve. By 10 min. past 5, the hour hand has turned through:
Answer : C
Explanation
Angle followed by hour hand in 12 hrs =360° Point followed by hour hand in 5 hrs 10 min. =31/6 = (360/12*31/6)°= 155°
Q 6 - The edge between the moment hand and the hour hand of a clock when the time is 4.20, is:
Answer : B
Explanation
Angle followed by hour hand in 13/3 hrs. =(360/12*13/3)°= 130° Point followed by min. hand in 20 min. = (360/60*20)°= 120° ∴ Required point = (130-120)°= 10°
Q 7 - The reflex edge between the hands of a clock at 10.25 is:
Answer : D
Explanation
Angle followed by hour hand in 125/12 hrs.=(360/12*125/12)°=625°/2 Edge followed by min. hand in 25 min. =(360/60*25°)= 150° Reflex angle= 360°-(625/2-150)°= 360°-325°/2 = 395°/2
Q 8 - How much does a watch lose every day, if its hands agree each 64 Min?
Answer : B
Explanation
55 min. spaces are secured in 60 min. 60 min. spaces are secured in (60/55*60) min. = 720/11 min. Misfortune in 64 min. = (720/11-64)= 16/11 min. Misfortune in 24 hrs =(16/11*1/64 *24*60)min.=400/11 min.
Q 9 - At what time somewhere around 7 and 8 o'clock will the hands of a be in the Same straight line at the same time, not together?
Answer : D
Explanation
When the check's hands are in the same straight line however not together. they are 30 moment spaces separated. At 7 o' clock, they are 25 min. space separated. ∴ Minute hand will need to increase just 5 min. spaces. 55 min. spaces are picked up in 60 min. 5 min. spaces are picked up in (60/55*5)min=60/11 min. ∴ Required time=60/11 min. past 7.
Q 10 - At what time somewhere around 5.30 and 6 will the hand of a clock be at right Points?
Answer : B
Explanation
At 5 o'clock, the hands are 25 min. space separated. To be at right edges and that too somewhere around 5.30 and 6,the moment hand needs to increase (25+15)=40 min. spaces. 55 min. space are gained in 60 min. 40 min. space are picked up in(60/55*40)min.=80/11 min. ∴ Required time =80/11 min. past 5.