Test: Clocks - Class 5 MCQ

# Test: Clocks - Class 5 MCQ

Test Description

## 20 Questions MCQ Test Know Your Aptitude Class 3 To 5 - Test: Clocks

Test: Clocks for Class 5 2024 is part of Know Your Aptitude Class 3 To 5 preparation. The Test: Clocks questions and answers have been prepared according to the Class 5 exam syllabus.The Test: Clocks MCQs are made for Class 5 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Clocks below.
Solutions of Test: Clocks questions in English are available as part of our Know Your Aptitude Class 3 To 5 for Class 5 & Test: Clocks solutions in Hindi for Know Your Aptitude Class 3 To 5 course. Download more important topics, notes, lectures and mock test series for Class 5 Exam by signing up for free. Attempt Test: Clocks | 20 questions in 25 minutes | Mock test for Class 5 preparation | Free important questions MCQ to study Know Your Aptitude Class 3 To 5 for Class 5 Exam | Download free PDF with solutions
Test: Clocks - Question 1

### A clock strikes once at 1 o'clock, twice at 2 o'clock, thrice at 3 o'clock and so on. What is the total number of strikings in a day = ?

Detailed Solution for Test: Clocks - Question 1

Total number of strikings
= 2(1 + 2 + 3 +.....+ 12)

Test: Clocks - Question 2

### A wall-clock takes 9 seconds in tinging at 9 o'clock. The time, it will take in tinging at 11 o'clock, is = ?

Detailed Solution for Test: Clocks - Question 2

There are 8 intervals in 9 tinging 10 intervals in 11 tinging.
Time duration of 8 intervals = 9 seconds
∴ Required time = Duration of 10 intervals

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Test: Clocks - Question 3

### A clock is displaying correct time at 9 am on Monday. If the clock loses 12 minutes in 24 hours, then the actual time when the clock indicates 8 : 30 pm on Wednesday of the same week is = ?

Detailed Solution for Test: Clocks - Question 3

Time interval from 9 am on Monday to 8 : 30 pm on Wednesday.
= (24 × 2.5) − 0:30 hours
= 60 − 0:30 hours
= 59 hours 30 minutes

Also 24 hours − 12 minutes
= 23 hours 48 minutes

= 30 minutes
Hence, the correct time is 30 minutes after 8:30 pm i.e., 9 pm

Test: Clocks - Question 4

Wall clock gains 2 minutes in 12 hours, while a table clock loses 2 minutes every 36 hours. Both are set right at 12 noon on Tuesday. The correct time when both show the same time next would be = ?

Detailed Solution for Test: Clocks - Question 4

After 12 days, i.e., after 12 × 24 hours clock A will gain 48 minutes and will show 12 : 48 noon.
After 12 days, i.e., after 12 × 24 hours clock B will loose 16 minutes and will show 11 : 44 am
The two clocks will show the same time after time after 135 days.
The time difference has to be 12 hours between then = 720 minutes.
A will gain 540 minutes in 135 days.
B will loose 180 minutes in 135 days, total 720 minutes.
Further if we consider only time then the problem becomes simpler
Total difference of minutes between the times shown by the clocks after 36 hours

∴ 12 noon, after 135 days

Test: Clocks - Question 5

How many times are the hour hand and the minute hand of a clock of a right angles during their motion from 1 : 00 pm to 10 : 00 pm?

Detailed Solution for Test: Clocks - Question 5

The duration from 1 : 00 pm to 10 : 00 pm is 9 hours and during each of these 9 hours the hands of the clock are at right angles twice.
So, required number = 9 × 2 = 18

Test: Clocks - Question 6

Between 5 and 6, a lady looked at her watch and mistaking the hour hand for the minute hand, she thought that the time was 57 minutes earlier than the correct time. The correct time was = ?

Detailed Solution for Test: Clocks - Question 6

Since the time read by the lady was 57 minutes earlier than the correct time, so the minute hand is (60 - 57) = 3 minutes spaces behind the hour hand.
Now, at 5 o'clock, the minute hand is 25 minutes spaces behind the hour hand.
To be 3 minutes spaces behind, it must gain (25 - 3) = 22 minutes spaces.
55 minutes spaces are gained in 60 minutes.
22 minutes spaces are gained in = 24 minutes
Hence, the correct time was 24 minutes past 5.

Test: Clocks - Question 7

A watch is 1 minute slow at 1 pm on Tuesday and 2 minutes fast at 1 pm on Thursday. When did it show the correct time = ?

Detailed Solution for Test: Clocks - Question 7

Time from 1 pm on Wednesday to 1 pm on Thursday = 48 hours
So, the watch gains (1 + 2) minute or 3 minutes in 48 hours.
Now, 3 minutes are gained in 48 hours
So, 1 minute is gained in (48/3) = 16 hours.
Thus, the watch showed the correct time 16 hours after 1 pm on Tuesday, i.e., 5 am on Wednesday.

Test: Clocks - Question 8

In every 30 minutes the time of a watch increases by 3 minutes. After showing the correct time at 5 am, what time will the watch show after 6 hours?

Detailed Solution for Test: Clocks - Question 8

Time gained in 1 hour = 6 minutes
Time gained in 6 hours = (6 × 6) minutes = 36 minutes
After 6 hours, the correct time is 11 : 00 am and the watch will show 11 : 36 am.

Test: Clocks - Question 9

There are two clocks, both set to show 10 pm on 21st January 2010. One clock gains 2 minutes in an hour and the other clock loses 5 minutes in an hour. Then by how many minutes do the two clocks differ at 4 pm on 22nd January 2010?

Detailed Solution for Test: Clocks - Question 9

One clock show 10 pm, on 21st January 2010
One clock gains = 2 minutes
Other clock loses = 5 minutes
Time period between 10 pm and 4 pm = 18 hours
∴ Required difference
= (2 × 18 + 5 × 18 ) minutes
= 126 minutes

Test: Clocks - Question 10

The hands of a clock are 10 cm and 7 cm respectively. The difference between the distance traversed by their extremities in 3 days 5 hours is = ?

Detailed Solution for Test: Clocks - Question 10

Number of rounds completed by the minute hand in 3 days 5 hours
= (3 × 24 + 5) = 77 = (3 × 24 + 5) = 77
Number of rounds completed by the hour hand in 3 days 5 hours

∴ Difference between the distance traversed

Test: Clocks - Question 11

At 9 : 38 A.M. through how many degrees the hour hand of a clock moved since noon the previous day?

Detailed Solution for Test: Clocks - Question 11

Time from 12 noon to 9 : 38 A.M.
= 12 hours + 9 hours 38 minutes
= 21 hours 38 minutes

Angle traced by the hour hand in 12 hours = 360°
Angle traced by the minute hand in

Test: Clocks - Question 12

How many rotations will the hour hand of a clock complete in 72 hours?

Detailed Solution for Test: Clocks - Question 12

Number of rotation
= 72/12
= 6

Test: Clocks - Question 13

Imagine that your watch was correct at noon, but then it began to lose 30 minutes each hour. It now show 4 pm but it stopped 5 hours ago. What is the correct time now = ?

Detailed Solution for Test: Clocks - Question 13

The watch loses 1/2 hour each hour. So, it must have take 8 hours to show 4 pm from 12 noon.
Thus, it stopped at 8 pm.
So, the correct time is 5 hours ahead of 8 pm, i,e., 1 am.

Test: Clocks - Question 14

In an accurate clock, in a period of 2 hours 20 minutes the minute hand will move over = ?

Detailed Solution for Test: Clocks - Question 14

Angle traced by the minute hand in 2 hours 20 minutes,i.e.,

Test: Clocks - Question 15

It is between 3 pm and 4 pm and the distance between the hour hand and the minute hand of clock is 18 minutes spaces. What time does the clock show?

Detailed Solution for Test: Clocks - Question 15

At 3 o'clock, the minute hand is 15 minutes spaces behind the hour hand.
Thus, the minute hand has to gain (15 + 18) = 33-minute spaces
55 minutes are gained in 60 minutes.
33 minutes are gained in
∴ The hands will be 18 minutes spaces apart at 3 : 36 pm.

Test: Clocks - Question 16

Through what angle does the minute hand of a clock turn in 5 minutes?

Detailed Solution for Test: Clocks - Question 16

Angle traced by the minute hand in 5 minutes.

Test: Clocks - Question 17

How many times in a day, the hands of a clock are straight?

Detailed Solution for Test: Clocks - Question 17

In 12 hours, the hands coincide or are in opposite direction 22 times.
∴ In 24 hours, the hands coincide or are in opposite direction 44 times a day.

Test: Clocks - Question 18

How many times do the hands of a clock coincide in a day?

Detailed Solution for Test: Clocks - Question 18

The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, they coincide only once, i.e., at 12 o'clock).
AM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
PM
12:00
1:05
2:11
3:16
4:22
5:27
6:33
7:38
8:44
9:49
10:55
The hands overlap about every 65 minutes, not every 60 minutes.
∴ The hands coincide 22 times in a day.

Test: Clocks - Question 19

How many times in a day, are the hands of a clock in straight line but opposite in direction?

Detailed Solution for Test: Clocks - Question 19

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours. (Because between 5 and 7 they point in opposite directions at 6 o'clcok only).
So, in a day, the hands point in the opposite directions 22 times.

Test: Clocks - Question 20

How many times are the hands of a clock at right angle in a day?

Detailed Solution for Test: Clocks - Question 20

In 12 hours, they are at right angles 22 times.
∴ In 24 hours, they are at right angles 44 times.

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