Tag: time

Quizzes (4) Questions (77)

Questions Related to time

Multiple choice maths measuring time time in 24 hour clock time difference time

Write following $12$ hour times into $24$ hour times.
$8:53$ pm

  1. $8:53$ am

  2. $8:53$ pm

  3. $20:53$

  4. $20:53$ pm
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

To change a $pm$ time to $24$ hours time , you have to add $12 \ \ pm$ to the hours unless it is $12\ \ pm$ then the time remain unchanged .

$8:53\ \ pm =(8+12):53=20:53$
Option $C$ is correct.

Multiple choice maths measuring time time in 24 hour clock time difference time

Marry put a roast in the oven at $2:45$ P.M. She cooked the roast for $3$ hours $48$ minutes. What time did Marry take the roast out of the oven?

  1. $5:36$ P.M.

  2. $6:21$ P.M.

  3. $6:33$ P.M.

  4. $7:30$ P.M.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This question becomes simply the question of addition and substraction of time.
$ \therefore $ $2: 45 + 3:48$ = $6:33 $

Multiple choice maths measuring time time in 24 hour clock time difference time

Write following $24$ hour times into $12$ hour times.
$12:00$

  1. $12:00$ am

  2. $12:00$ pm

  3. $12:00$

  4. $0:00$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

For $2$ hours time from $12:00$ to $12:59$ just maark $\text{pm}$ to it to convert it into $12$ hour time.

$12:00=12:00$ pm
Hence, option B is correct.

Multiple choice maths measuring time time in 24 hour clock time difference time

At 4.24 pm, how many degrees has the hour hand of a clock moved from its position at noon ?

  1. $132^{\circ}$

  2. $135^{\circ}$

  3. $140^{\circ}$

  4. $145^{\circ}$
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The amount of degrees moved by the hour clock $=$
$=\dfrac{360}{12}(4+\dfrac{24}{60})$
$=120+12=132^\circ$

Multiple choice maths measuring time time in 24 hour clock time difference time

What percent of $1$ day is $36$ minutes?

  1. $25\%$

  2. $2.5\%$

  3. $3.6\%$

  4. $0.25\%$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
Total hours in 1 day $=  24$ hrs
$1$ hour $= 60$ minutes
Total minutes in $1$ day $=  24 \times 60 = 1440$ minutes
Percent of $36$ min in $1$ Day is 
$= \dfrac{36}{1440} \times 100  \% = 2.5 \%$
Multiple choice maths measuring time time in 24 hour clock time difference time

What does a.m. and p.m. means respectively?

  1. Before and after midday

  2. After and before midday

  3. Before and after midnight

  4. After and before midnight
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
AM and PM both are Latin words, used in 12-hour clock system to represent Before Noon and After Noon. They are also represented as A.M. and P.M.
AM expand as Anti Meridiem which means "before midday" and PM expand as Post Meridiem which means "after midday".
Multiple choice maths measuring time time in 24 hour clock time difference time

The hands of a clock coincide after every  $66$  minutes of correct time. How much is the clock fast or slow in  $24$  hours?

  1. $12 \frac { 108 } { 121 }$

  2. $11 \frac { 109 } { 121 }$

  3. $Both (A) & (B)$

  4. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The angle between $2$ successive numbers in the clock is $\dfrac{360}{12}=30^{\circ}$

The angle between successive dots is $\dfrac{360}{60}=6^{\circ}$
For one rotation of minutes hand hours hand rotates by $30^{\circ}$
$\implies $ For increase in $1$ minute there is increase of $\dfrac{1}{2}^{\circ}$ for hours hand
Net decrease For $1$ min is $\dfrac{11}{2}^{\circ}$
For $x$ min the decrease must be $30^{\circ}$
$\implies x=\dfrac{60}{11}$
So the hands to co incide again it takes $60+\dfrac{60}{11}\implies 65\dfrac{5}{11}$ min
The clock shows $\dfrac{6}{11}$ min error for $66$ min

The clock shows $x$ min error for $24\times 60$ 
$\implies x=\dfrac{\dfrac{5}{11}\times24\times60}{11}=11\dfrac{109}{121} $

Multiple choice maths measuring time time in 24 hour clock time difference time

Calculate the time shown on Varun's watch, when the actual time was half past $6$ in the evening.

  1. $5:30$ p.m

  2. $6:55$ p.m

  3. $6:30$ p.m

  4. $5:55$ p.m
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
With minutes 1 – 29, we say it’s past (or after) the hour.

Therefore, half past 6 means

$5:30pm$
Multiple choice maths measuring time time in 24 hour clock time difference time

Choose the most appropriate option.
The angles between the hands of a clock when the time is $4:25$ am is?

  1. $14.5$ degrees

  2. $12.5$ degrees

  3. $17.5$ degrees

  4. $13.5$ degrees
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation
The hour hand rotates $0.5^o$ per minute while the minute hand rotates $6^o$ per minute.

At exactly four, the hour hand as completed $240$ minutes $= 120^o$. 

Hence angle between minute and hour hand at that point is $120^o$.

At $4:25,$ the minute hand has moved $25\times 6= 150^o.$

Thus angle between minute hand and $12$(on the clock) is $150^o.$

But at the same time, even the our hand has moved $0.5\times 25= 12.5^o.$

Now, the angle between the hour hand and $12$(on the clock) is $120+12.5=132.5^o$.

Now the angle between the two hands of the clock $=150^o-132.5^o$ 
                                                                                       $ = 17.5^o.$