Puzzles Questions

• Word Puzzles

Q:

19 persons do 19 programs in 19 hours . If they take 15 mins interval and then how much time they need to do 52 programs.

 A) 23 hours B) 47 hrs 15 min C) 52 hrs 15 min D) 22 hrs 15 min

Explanation:

Since they can do 19 programs in 19 hours, Then 52 programs in 52 hours respectively.
And a 15 min interval
Total time they take to do 52 programs is 52 hours 15 minutes.

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Q:

Choose what replaces '?' in the following figure ?

 A) Q B) O C) M D) N

Explanation:

The alphabetical value of the letters in the left hand column follows through the sequence of Prime Numbers, with the letters in the right hand column representing the corresponding reverse alphabetical values. So,

M = Reverse of M = N.

Filed Under: Missing letters puzzles
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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

Explanation:

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

$\inline \fn_jvn T=\frac{2}{11}\left ( 2x30+0^{\circ} \right )$ minutes past 2

=> $\inline \fn_jvn 1\tfrac{10}{11}$ minutes past 2

Filed Under: Clock puzzles
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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

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.

Filed Under: Clock puzzles
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Q:

A cuboid shaped wooden block has 6 cm length, 4 cm breadth and 1 cm height.
Two faces measuring 4 cm x 1 cm are coloured in black.
Two faces measuring 6 cm x 1 cm are coloured in red.
Two faces measuring 6 cm x 4 cm are coloured in green.
The block is divided into 6 equal cubes of side 1 cm (from 6 cm side), 4 equal cubes of side 1 cm(from 4 cm side).

How many cubes will have green colour on two sides and rest of the four sides having no colour ?

 A) 8 B) 24 C) 16 D) 4

Explanation:

There are 16 small cubes attached to the outer walls of the cuboid.
Therefore remaining inner small cubes will be the cubes having two sides green coloured.
So the required number = 24 - 16 = 8

Filed Under: Math Puzzles
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