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 - How much time does a watch gain per day, if its hands coincides in every 64 min.?

A - 37 min.

B - $32\frac{8}{11}$ min

C - 31 min.

D - None of these

Answer : B

Explanation

$\left ( \frac{720}{11} - x\right )\times\left ( \frac{60\times24}{x} \right )$ min.

Put x = 64, then $32\frac{8}{11}$ min. is correct.

Q 2 - At what time between 9 and 10 O`clock will the hands of a clock be together?

A - 45 min past 9

B - 49 $\frac{1}{11}$ min past 9

C - 50 min past 9

D - 49 min past 9

Answer : B

Explanation

$\frac{360}{12}$ × 45 = 49 $\frac{1}{11}$ min. past 9

Q 3 - At 3.40, the hour hand and minute of a clock forms an angle of?

Answer : C

Explanation

Angle turned in 12 hrs = 360^o

Angle turned in 11/3 hrs = ( $\frac{360}{12}$ × $\frac{11}{3}$) = 110^o

Angle turned by minute hand in 60 min = 360^o

Angle turned by minute hand in 40 min = ($\frac{360}{60}$ × 40) = 240^o

Required angle = 240 - 110 = 130^o

Q 4 - What is the angle between two hands of a clock at 7.15?

A - 35$\frac{1}{2}^{\circ}$

B - 36$\frac{1}{2}^{\circ}$

C - 37$\frac{1}{2}^{\circ}$

D - 38$\frac{1}{2}^{\circ}$

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 - In a period of 12 hours, how many times the hands are at right angle to each other?

Answer : A

Explanation

The hands are at right angle to each other 2 times in each hour

So, In 12 hour there are 11 intervals, therefore hands will be at right angle 22 times in 12hrs.

Q 6 - At what time between 10 and 11 O`clock the two hands of a clock be coincide together?

A - 53$\frac{6}{11}$ min past 10

B - 54$\frac{6}{11}$ min past 10

C - 55$\frac{6}{11}$ min past 10

D - 57$\frac{6}{11}$ min past 10

Answer : B

Explanation

$\frac{60n}{11}$ = $\frac{60 \times 10}{11}$ = 54$\frac{6}{11}$

Q 7 - How much time does a clock gain if it coincide per 62 min in a day?

A - 80$\frac{2}{341}$

B - 81$\frac{2}{341}$

C - 82$\frac{2}{341}$

D - 83$\frac{2}{341}$

Answer : A

Explanation

($\frac{720}{11}$ - x) × ($\frac{60 × 24}{x}$); given x = 62 then 80$\frac{2}{341}$

Q 8 - If a clock started at noon then what should be the angle at 7.25 pm?

Answer : B

Explanation

(7 + $\frac{25}{12}$) × 30 = $\frac{445}{2}$ = 222$\frac{5}{2}$

Q 9 - The minute hand of a clock overtakes the hour hand at an interval of 70 min of the correct time. How much time in a day does the clock gain or loss?

A - $\frac{7200}{77}$ min gain

B - $\frac{7300}{77}$ min loss

C - $\frac{7200}{77}$ min loss

D - $\frac{7300}{77}$ min gain

Answer : C

Explanation

$\left ( \frac{720}{11} - x \right ) \times\left ( \frac{60 \times 24}{x} \right )$ min

$\left ( \frac{720}{11} - 70 \right ) \times\left ( \frac{60 \times 24}{70} \right )$ min = -$\frac{7200}{77}$ min(loss)

Q 10 - Find the angle between the hour hand and minute hand of a clock when the time is 4.10.

Answer : A

Explanation

30(n $\frac{x}{2}$) + $\frac{x}{2}$; n = 4 and x = 10 so, option (a) is correct.

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