# 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 many number of hours and minutes are there in between 6.14 a.m. and 8.02 p.m. on same day?

A - 2 hrs and 14 min.

B - 12 hrs and 16 min.

C - 13 hrs and 48 min.

D - 14 hrs. And 16 min.

### Explanation

Total hour 8.02 – 6.14 = 1.48 min.

= 12 + 1.48 = 13 hrs and 48 min.

Q 2 - The reflex angle between the hands of a clock at 10:25 is?

A - 180o

B - 192$\frac{1}{2}^{\circ}$

C - 195o

D - 197$\frac{1}{2}^{\circ}$

### Explanation

By hour hand $\frac{360}{12} \times \frac{125}{12} = 312 \frac{1}{2}^{\circ}$

By min hand $\frac{360}{12} \times 25^{\circ}$ = 150o

Reflex angle = 360o - (312$\frac{1}{2}^{\circ}$ - 150o) = 360o - 162$\frac{1}{2}^{\circ}$ = 197$\frac{1}{2}^{\circ}$

Q 3 - A clock shows 10 O clock in the morning. How many degrees will the hour hand rotate when the clock shows 4 O clock in the afternoon?

A - 144o

B - 150o

C - 168o

D - 180o

### Explanation

Angle turned in 6 hrs = $\frac{360}{12}$ × 6 = 180o

### 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?

A - 22 times

B - 20 times

C - 18 times

D - 24 times

### 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.

### Explanation

(5n ± x) × $\frac{12}{11}$ min past n’; here n = 11

(5 × 11 ± 6) × $\frac{12}{11}$ = 66$\frac{6}{11}$ min past 11 and 53$\frac{5}{11}$ min past 11

Q 7 - Calculate the minute and hour from 8.15 am to 10.20 pm on the same day?

A - 14.10

B - 14.00

C - 14.05

D - 24.05

### Explanation

total hour = 10.20 - 8.15 = 2.05

= 12.00 + 2.05 = 14 hrs 05min.

Q 8 - At what time from 10 O clock to 11 O clock the hands coincide each other?

A - 57$\frac{3}{11}$

B - 57$\frac{4}{11}$

C - 57$\frac{5}{11}$

D - 57$\frac{6}{11}$

### Explanation $\frac{60}{55}$ × 53 = 57$\frac{6}{11}$

Q 9 - At which point of time after 5 O clock, both hands are at right angle to each other for the first time?

A - 5h, 43$\frac{4}{11}$ min

B - 5h, 43$\frac{6}{11}$ min

C - 5h, 43$\frac{5}{11}$ min

D - 5h, 43$\frac{7}{11}$ min

### Explanation

(5n + 15) × $\frac{12}{11}$; here n = 5

$= 40 \times \frac{12}{11} = 43\frac{6}{11}$ min past 5

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

A - 65o

B - 35o

C - 125o

D - 60o

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