Guess these 14 famous TV show’s from whatsapp emoticons, smileys and symbols
Guess famous TV shows from WhatsApp Emoticons
Guess the famous TV Show’s ?
Find Number present only once
Write an algorithm to find out a number from an array of numbers where only one number occurs once and rest all occurs twice.
Note: Without using extra O(n) space and in O(n).
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Guess heroines names
Guess the heroines names from whatsapp emoticons, signs and smileys
guess heroine’s names from whatsapp emoticons
Average speed of train
average speed of train puzzle
A train is going at a speed of 60kmph towards Delhi and returned back at a speed of 30kmph. What is its average speed?
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Find 3 Fastest horses from 25 horses
There are 25 horses. We have to find out the fastest 3 horses. In one race maximum 5 horses can run. How many such races are required in minimum to get the result ?
find 3 fastest horses from 25 horses puzzle
Number of matches to declare the winner
Singles table tennis tournament is held at Infosys, a total of 32 players participated in the tournament. If a player is eliminated as soon as the player loses a match. How many matches are required to declare the winner?
Identify the diseases
identify the diseases from whatsapp puzzle, emoticons and smileys
identify the diseases
Tyres on the bus
Number Puzzle #93
If 8 tyres were used on a bus (with 6 tyres) which traveled 16000 km.
How many km did each tyre sustain?
Note: all the tyres were used equally in sustaining this distance.
Check your answer:- Click here to See Solution
Sum of the distance traveled by all tyres = 6*16000 = 96000
Distance traveled by each tyre = 96000/8 = 12000.
Distance traveled by each tyre = 96000/8 = 12000.
Cube with painted surface puzzle
Number Puzzle #92
red color cube puzzle
A 3x3x3 inches cube is painted with red color on all the outer surfaces. If the cube is cut into smaller cubes of 1*1*1 inches.
How many 1 inch cubes will have at least one surface painted ?
Check your answer:-
Click here to See Solution
Lets count:
All the corners will have 3 faces painted, there are total of 8 corners.
Cubes at the edge(except corners) will have 2 faces painted, there will a one such cube per edge, there are a total of 12 edges, thus 12 cubes will have 2 faces painted.
You can imagine one cube formed by exact center of a face will have only one face painted, there are a total of 6 faces in a cube, thus 6 such cubes will exists.
All the corners will have 3 faces painted, there are total of 8 corners.
Cubes at the edge(except corners) will have 2 faces painted, there will a one such cube per edge, there are a total of 12 edges, thus 12 cubes will have 2 faces painted.
You can imagine one cube formed by exact center of a face will have only one face painted, there are a total of 6 faces in a cube, thus 6 such cubes will exists.
So total number of cubes with at least one face painted = 8 + 12 + 6 = 26
We can even confirm our calculation by counting the number of painted faces
Number of painted faces = 8*3 + 12*2 + 6 = 24 + 24 + 6 = 54 = 9*6(Each face of the original 3x3x3 cube is cut into 9 pieces.
How many days required?
Number Puzzle #91
16 men can finish a job in 16 days, If after 4 days manpower is increased by 14, then How many days will be needed to finish the job?
–In Hindi–
16 aadmi 1 kaam ko 16 dino me pura karte hai agar 4 din baad 14 aadmi bada dete hain to kitne dino me kaam pura hoga?
16 men can do a job in 16 days, after 4 days remaining work can be finished in 12 days by 16 men. But now as we have 14 more persons to do the job, so it can be finished in 12*16/30 = 6.4 days.
More explanation:-
16 men can finish a job in 12 days.
1 man can do the same job alone in 12*16 days.
30 men can do the same job in 12*16/30 days.
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