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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 - A clock is set right at 6 p.m. the clock loses 16 min. In 24 hrs. What will be true time if the clock indicates 11p.m on 4th day?
Answer : A
Explanation
$\left ( 24 \times \frac{15}{356} \times 89 \right )$ hrs = 90 hrs of correct clock, correct time will be mid night.
Q 2 - At 3.40, the hour hand and the minute hand of a clock forms an angle of?
Answer : C
Explanation
$\frac{360}{12} \times \frac{11}{3}$ = 110o and $\frac{360}{60} \times 40$ = 240o
Required angle 240 110 = 130o
Q 3 - Four bells ring at interval of 30 min, 1 hrs, 1$\frac{1}{2}$hrs, 1 hrs and 45 min respectively. All the bell rings simultaneously at 12 noon they will again ring simultaneously at.
Answer : D
Explanation
L.C.M of 30, 60, 90 and 105 =1260 hence all the bells ring after 1260 min i.e at 9 am
Q 4 - What is the angle between two hands of a clock at 7.15?
Answer : C
Explanation
$\frac{360}{12}$ × $\frac{7}{4}$ = $\frac{210}{4}$, and $\frac{360}{60}$ × 15 = 90
Required angle = 90 - $\frac{210}{4}$ = 37$\frac{1}{2}^{\circ}$
Q 5 - If a clock is started at noon then angle turned by hour hand at 4.45 pm is?
Answer : A
Explanation
(4 + $\frac{45}{60}$) × 30 = 142$\frac{2}{4}$
Q 6 - At what time between 4 and 3 O`clock will the hands of a clock point in opposite direction?
A - $\frac{549}{11}$ min past 4
Answer : C
Explanation
(5n + 30 )×$\frac{12}{11}$, n = 4
$\frac{50 \times 12}{11}$ min. past 4 = $\frac{600}{11}$
Q 7 - At what time after 6 O` clock, the two hands are at right angle for first time?
A - 49$\frac{1}{11}$ min past 6
B - 48$\frac{1}{11}$ min past 6
Answer : A
Explanation
( 5n + 15) × $\frac{12}{11}$ here , n= 6
$\frac{540}{11}$ = 49$\frac{1}{11}$ min past 6
Q 8 - Calculate the reflex angle at 9. 45 a.m.
Answer : C
Explanation
$\frac{360}{12} \times \frac{117}{12} = 292\frac{5}{12}$
$\frac{360}{60}$ × 45 = 270
Reflex angle = 360- (292$\frac{5}{12}$ - 270) = 337$\frac{5}{12}$
Q 9 - A clock was late by 5 minutes at noon on Sunday, but on Friday at 3P.M it is found that clock was fast by 10 minutes. Find the time when time was correct.
Answer : B
Explanation
It is 123 hours from Sunday noon to Friday 3P.M. Therefore clock gained 15 minutes in 123 hrs, thus 5 minute can be gained in $\frac{120}{15}$ × 5 hrs = 40 hrs = on Tuesday at 5 A.M
Answer : B
Explanation
The angle turned by hour hand in 9 hrs, 50 min = 295o
The angle turned by minute hand in 50 min = 300o
Angle = 300o - 295o = 5o