There is a clock which shows false timing ie it sh | Clock puzzles Questions & Answers

Q:

Minutes Hand Clock Puzzle?

A) 12	B) 24
C) 44	D) 60

Answer & Explanation Answer: B) 24

Explanation:

Exactly 24 times.

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11 1313

Q:

1 Billion Seconds Equals to

A) 34.76 years	B) 32.48 years
C) 33.31 years	D) 31.68 years

Answer & Explanation Answer: D) 31.68 years

Explanation:

We know that 1 year = 365.25 days

1 day = 24 hours

1 hour = 60 minutes

1 minute = 60 seconds

=> 1 Year = 365.25 x 24 x 60 x 60 Seconds

But 1 billion seconds = ?

1 Year = 365.25 x 24 x 60 x 60 Seconds

? = 1000000000 Seconds

$? = \frac{1000000000}{365.25 x 24 x 60 x 60} years$ = 31. 68 years.

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35 3922

Q:

Find at what time between 9 and 10 o’clock will the hands of a clock be in 180° ?

A) 180/14 min past 10	B) 180/11 min past 9
C) 148/7 min past 10	D) 154/11 min past 9

Answer & Explanation Answer: B) 180/11 min past 9

Explanation:

At 9 o’clock, the hour hand is at 9 and the minutes hand is at 12, i.e., the two hands are 15 min. spaces apart.
So, the minute hand should gain = (30 - 15) minutes = 15 minutes
55 minutes will be gained in 60 min.
15 minutes spaces will be gained in ((60/55) x 15) min. = 180/11 min.
The hands will be in the same straight line but not together i.e.,in 180 degrees at 180/11 min. past 9.

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50 10963

Q:

Minute hand overlaps hour hand in 65 mins. In how many days it will gain 1440 hours ?

A) 57 days	B) 58 days
C) 60 days	D) 61 days

Answer & Explanation Answer: C) 60 days

Explanation:

In this problem , it has considered that 65 mins = 1hr
So mins has increased by 5 mins so multiply 5 x 24 = 120 mins extra ,
That is now per day it adds 2hr extra, so divide 1440/26 = 59.384 days =~ 60 days.

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34 5420

Q:

How many minutes is it until 6 o'clock if 50 minutes ago it was 4 times as many minutes past 3 o'clock ?

A) 26 min	B) 24 min
C) 22 min	D) 20 min

Answer & Explanation Answer: A) 26 min

Explanation:

Let the required number of minutes = M
Total minutes between 3o'clock and 6o' clock = 180 minutes
M + 50 + 4M = 180
5M + 50 = 180
5M = 130
M = 26 minutes.

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19 5594

Q:

The reflex angle between the hands of a clock at 11:35 is ?

A) 137.5 degrees	B) 222.5 degrees
C) 192.5 degrees	D) 330 degrees

Answer & Explanation Answer: B) 222.5 degrees

Explanation:

Apply the formula for finding the angle:
Angle=(30h-(11/2)m( where m stands for minutes and h stands for hours)
Hence, 30x11 - 11/2x35 = 330 - 192.5 = 137.5 degrees
The reflex angle = 360 - 192.5 degree = 222.5 degrees.

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26 7912

Q:

At what time between 2 and 3 O'clock, the hands of a clock coincide ?

A) 1 10/11 minutes past 2	B) 1 10/11 minutes past 3
C) 1 11/10 minutes past 3	D) 11 10/11 minutes past 2

Answer & Explanation Answer: A) 1 10/11 minutes past 2

Explanation:

Since, in one hour, two hands of a clock coincide only once, so, there will be value.
Required time $T = \frac{2}{11} (H \times 30 + A^{o})$ minutes past H.
Here H - initial position of hour hand = 2 (since 2 O'clock)
A° = Required angle = 0° (Since it coincides)

$T = \frac{2}{11} (2 \times 30 + 0^{o})$ minutes past 2

=> $1 \frac{10}{11}$ minutes past 2

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39 12015

Q:

A clock is started at 11 a.m. By 600 seconds past 6 p.m, the hour hand has turned through ?

A) 155 degrees	B) 175 degrees
C) 205 degrees	D) 215 degrees

Answer & Explanation Answer: D) 215 degrees

Explanation:

The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.
We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.
Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.

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15 4948

A) 36 minutes	B) 48 minutes
C) 35 minutes	D) 60 minutes

There is a clock which shows false timing ie it shows 20 minutes less for each 1 hour. If the clock shows 12 noon now how many minutes will be lost when it shows 2 pm ?

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