- Reasoning - Home
- Reasoning - Overview
- Reasoning
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.
Answer : D
Explanation
The hands are at right angle 22 times in a 12 hours so, in 24 hours they will be 44 times at right angle so (d) is correct.
Q 2 - At what time between 7 and 8 O` clock will the hands of a clock be in the same straight line but not together?
B - 5 $\frac{3}{11}$ min. past 7
Answer : D
Explanation
$\frac{60}{55}$ × 5 = 5$\frac{5}{11}$ min. past 7
Q 3 - What is the exact time between 10 and 11 O`clock when the hands are at right angle to each other?
A - 5$\frac{5}{11}$ minute past 11
B - 50$\frac{5}{11}$ minute past 10
Answer : A
Explanation
We know that the hands of a clock are always 15 minute space apart when they are in right angle to each other. From figure it is clear that to be at right angle, minute hand must move 5 minute space more.
We know that minute gained by minute hand in one minute = $\frac{12}{11}$
Therefore 5 minute can be gained in 5 × $\frac{12}{11}$ = 5$\frac{5}{11}$ minute past 10
Q 4 - At what time after 5 O`clock hour hand and the minute hand are at right angle for the first time?
A - 5 hrs 43$\frac{7}{11}$ min
B - 5 hrs 40$\frac{7}{11}$ min
Answer : A
Explanation
(5n + 15) × $\frac{12}{11}$; n = 5
$\frac{480}{11}$ = 43$\frac{7}{11}$
Q 5 - A watch which gains uniformly is 2 minutes slow at noon on Monday and 4 min 48 sec fast at 2.40 pm on the following day. At what time it was correct?
Answer : B
Explanation
From 12 noon to 2 pm on the following day
There are 7 day and 2 hours = 170 hours
Now watch gains 2 + 4$\frac{4}{5}$ = $\frac{34}{5}$ min in 170 hrs
It will gain 2 min $\frac{170 \times 5}{34}$ × 12 = 50 hrs = 2 days 2 hrs.
Q 6 - In which time between 9 and 10 O`clock, the hands of a clock will look like a straight line?
Answer : A
Explanation
$\frac{60}{55}$ × 15 = $\frac{180}{11}$
Q 7 - How much time does a clock gain if it coincide per 62 min in a day?
Answer : A
Explanation
($\frac{720}{11}$ - x) × ($\frac{60 × 24}{x}$); given x = 62 then 80$\frac{2}{341}$
Q 8 - What should be the angle of the hands of a clock which are inclined at 40 min past 5?
Answer : C
Explanation
40 min past 5 = 60 + $\frac{40}{5}$ = 68
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
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 - At what time between 7 O`clock and 8 O`clock in the morning will the hands of a clock be at right angle?
A - $\frac{500}{11}$ min past 7 and $\frac{340}{11}$ min past 7
B - $\frac{440}{11}$ min past 7 and $\frac{280}{11}$ min past 7
C - $\frac{600}{11}$ min past 7 and $\frac{240}{11}$ min past 7
D - $\frac{340}{11}$ min past 7 and $\frac{120}{11}$ min past 7
Answer : C
Explanation
(5n ± 15) × $\frac{12}{11}$; here n = 7
Then, $\frac{600}{11}$ min past 7 and $\frac{240}{11}$ min past 7