Infosys Interview Puzzles by Shakuntala Devi - Puzzles asked in Infosys
Infosys
is every engineer's dream company. Getting selected in Infosys is quite
easy as they are looking for candidates having good communication
skills and candidates who can think logically.after clearing the
attitude test, they have next and final round which is an interview.it
is kind of HR interview and detest your logic by asking you some
Puzzles. Shakuntala Devi Puzzles are very famous in use by most of the
software companies during interviews.Shakuntala Devi was a great
mathematician was born in India.
check out the following Puzzles which will give an idea that what kind of the questions or Puzzles are asked in an interview.
1. You are given two candles of the same size, which can burn an hour each. You
to measure 90 minutes with candles. (There is no scale or clock).
Answer: 1. The light for the first time the two ends of the first candle. When the light turns off until
one end of the second candle. (30 +60 = 90)
2. Tackling similar to that measured 45 minutes.
Answer: First, light from both ends of the first candle and one end of the second candle.
When the candle burns first, then go to the ends of the second candle
(15 +30 = 45)
3. R that gives a thermometer. What you can do that without measure or
temperature?
Answer: If you put the thermometer in a tree does not grow, die
4. How is it possible to place four points equidistant between them?
O
U are a landscape designer and your boss asked u to design a landscape
four trees should be placed equidistant between them.
(Distance between each tree to another should be the same)
Answer: Only three points can be equidistant between them. But if you say that the place
pyramid, it is possible
5. It gives a cake, a corner has been broken. How do u cut the rest
Two equal parts?
Answer: Cut the cake
6. How will you recognize the magnet and magnetic material and nonmagnetic material?
Answer: Drag a piece of material over another. There is no attractive force in
middle part of the magnet.
O
Take a piece of string and tie with a bar and see if the poles. If an iron bar
then moves freely and if magnet to fix then to a direction under
poles.
7. If a tire of a stolen car suddenly .... and after a while or find a tire
Screwless, how u ur whole trip?
Answer: Open the three screws, one at each wheel and tire repair.
8. How can u measure a ceiling height using a thermometer?
Answer: The temperature varies with altitude. and its dependence on other factors such as
humidity, wind, etc.
9. What is the height of room if after entering the room to see ur head
strikes a hanging bulb?
Answer: hanging from the lamp. Calculating time to complete a
oscillation simple harmonic motion (SAM) of the bulb delivery. Place in
type T = 2 * 3,14 * (L / G) ^ 1 / 2
L is the length of the suspension wire.
Add the L with ur height to get the height of the room.
O
A: The drop in the room and find the moment it touches the ground. Use
Natural formula s = (a ^ 2) / 2 (not sure why IM)
10. Color of bear .... if dropped from a height of 1 meter in 1 second.
Answer: We perfect "g" 10, which is only in poles ... Polar Bear ... Therefore, white
11. How will you measure the height of the building when its roof?
And if you have stone with you.
Answer: The fall of the stone and find time for the stone to reach the ground. find
height with the formula
s = a + gt (s = height, initial velocity = 0, g = 9.8 m / s, t = time)
12. How WÜD u catch and receive a ball in the same direction? (Fall is in the north
And it was accepted from the bottom as it is 2 directions)
Answer;
13. 25 statements. Some say the truth, some false and some alternators. Discover
true statements.
Answer;
14. U can make 120 with five zeros?
Answer: Factorial (factorial (0) + factorial (0) + factorial (0) + factorial (0) + factorial (0)) =
120
15.There are three people A, B, C. Liars are of same type and Truth speaking people
the same type. Find out who's telling the truth about fakes
following statements:
a) says: B is a liar.
b) B says: A and C are the same type.
Answer: you get a true speaker. This means that B is a liar, then this means that A and C
not the same type.
16.5 swimmers A, B, C, E, F and conditions of many of their positions, like
Two b / w A & F, B does not win etc the question was who was b / w, such as R & D?
Answer;
17. u in a race back to 40kmph first and second rounds, speed or
should be conducted so that the average speed must be 80kmph heart.
Answer: it is impossible! if u led the first lap at 40 mph, it is impossible for
average speed of 80kmph in turn.
For example. consider one lap distance = 80 km.
req time. to cover a round = 80km/40kmph = 2 hours.
If the average. speed is 80kmph, then the total years that have =
160kms/80kmph = 2 hours.
It is also the case with any other distance u consider. if the average is 80kmph
weak
18. We must draw three concentric circles with a line that passes through the center of
Not raise their hands.
Answer: Start a full range of motion in circles in circles along the line, then
Tie second cycle. Like other sages.
19. A rectangular paper is there. In a corner a rectangular size paper is taken from
that. Now you have to cut the remaining paper into two equal parts.
Answer: try to get on paper. You must fold the part that contains the complete paper and select
Half, then fold the part that cut and selects half, then cut to length
folding. (I do not understand this!)
20. Value (x-a) (x-b) ... ... ... .. (X-Z)
Ans: 0 as X-X-term