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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 - At what time between 2 and 3 o' clock will the hands of a clock be together?
Answer : A
Explanation
At 2 o' clock, the hour hand is at 2 and minute hand is at 12 i.e. they are 10 min spaces apart. The minute hand has to gain 10 minute spaces over the hour hand to be together. The minute hand gains 55 mins in 60 mins. ∴ It will gain 10 mins in 60/55 * 10 min = 120/11 minutes. Hence the hands will coincide at 120/11 minutes past 2.
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 - An exact check demonstrates 8 o'clock in the morning . through what number of degrees will the hour hand pivot when the clock indicates 2 O' check toward the evening?
Answer : D
Explanation
Angle followed by the hour hand in 6 hours = (360/12*6)°= 180°
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°
Answer : C
Explanation
In 12 hours, the hands concur or are in inverse heading 22 times. ∴ In 24 hours, the hands concur or are in inverse heading 44 Times each day.
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 - A watch picks up 5 sec. in 3 min. was set comfortable am. Toward the evening Of that day, when the watch demonstrated quarter past 4'o clock the Genuine time is:
Answer : B
Explanation
Time structure 7 a.m. to 4.15 p.m.=9 hrs 15 min=37/4 hrs. 3 min. 5 sec. of this clock=3 min of the right clock. => 37/720hrs of this clock =1/2 hrs of the right clock => 37/4 hrs of this clock =(1/20*720/37*37/4)hrs of right clock = 9hrs of the right clock ∴ The right time is 9 hrs after 7 a.m. i.e. 4 p.m.