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Infosys Placement Paper 73
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Infosys Placement Paper 73
Infosys Placement Papers
INFOSYS  Placement Paper 16 July 2006New Delhi
I had my Infy PAPER on 16th at Tagore International ( east of Kailash) New Delhi. Round abt 8001200 students appeared for the paper... N 353 of dem cud crack It.
Do all the previous year papers ..... Thats a must ..Newayz I cleared the apti.... I got All of them correct. N yes listen.. I am no brainy Guy ... I am like U ... just like U ...Bunkin classes in coll. Playin all day n all ....
Just one advice ..... Dont waste Time after u get ur infy call ..
I had my interview on 18th ....
It was Ok .... but I am keeping my fingers crossed ....till they declare the results. Pray for me guys .....
Herezzz the paper....
QUESTION 1 4 marks
There were 2 systems A n B.14 degrees in A is equivalent to 36 in System B and 133 in A is equivalent to 87 in B. now what is the Temperature where they both r equal?
Ans: 52.5 (conversion A=(7/3)B70)
QUESTION 2 3 marks
A dice has faces 1 against 6, 3 against 5 and 2 against 4 always. How many such combinations of faces are possible in a dice?
Ans : 24
Keeping 1 and 6 fixed, we can have two combinations of 6 and 3, and two of 2 and 4 that means four. And interchanging 1 and 6 we can have two more combinations that means with one pair 8 combinations are there : 4*2=8. Similarly with other two also 8 combos. So in all 8*3=24 combos are possible
QUESTION 3 4 marks
A man walks at 4 kmph on level ground. At 3kmph to climb hill, 6kmph for downhill and back 4kmph on level ground. He started at 3 pm and came at 9pm. What is the distance covered on one way?
Ans:12 km
Solution: Let plain road = x km
And hill road = y km
x/4 + y/3 + y/6 + x/4 = 6
x/2 + y/2 = 6
? x + y =12
QUESTION 4 8 marks
There is a peculiar island where people speak a strange language called 'Kubi'. The men always speak truth and a women never say two 2 consecutive truth or false statements, that is, if she says truth statement once then she says false statement next and vice versa. The boys and girls always lie. One day I asked a child "Are you a boy or girl?" and the child replied in Kubi. Since I didn't know the language,
I asked the child's parents what it means. One of the parents said "The child says, I am a boy" and the other said that "The child is a girl. Kubi lied".
a) Is the child a boy or a girl
b) Which parent answered first?
Ans: The child is a girl and father answered first.
QUESTION 5 4 marks
There were two clock one is getting slow by two minutes/hr and another one is gaining 1 minute every hour and exactly after how many hours there two clock has a 1hr difference. So how long clock runs?
Ans (20hr)
QUESTION 6 4 marks
If horse runs half his distance with 12 miles per hour with no load, after that it carries some load and speed reduced to 4 miles per hour. What his average speed?
Ans 6
QUESTION 7 3 marks
If u have 100 consecutive set of joins. And make that 2 set something like that.. (its like Shakunthala devi gold maker problem)
Ans: 99
QUESTION 8
Fill the missing no in the series 6 marks
a) 1,2,3,5,8,16,
b) 1,2, 3, 8, .., 224
Ans a)231 b) 27
QUESTION 9 5 marks
A friend comes to other and says can u do me a favour pick letters randomly from the stack such that all the letters that u pick are 5% of the total letters. The other friend while sorting just picked up letter number one, missed one, picked up another letter, missed two picked one letter, missed three, picked another letter, and so on...till he picked last letter to his amazement he found that the picked up letters were 5% of the total letters in the stack. How many letters did he pick?
Ans: 39
1 2 3 4 5 6 7 8 9 10 ....
1 2 3 4 ......
as shown above, he will pich cards. Now the sum of cards wii b n(n+1)/2 in the upper series and n will represent the card being piched up.
According to given condition, n(n+1)/2 * 0.05 = n
So on solving we get n=39.
QUESTION 10
A jeweler makes a window display. He has 7 gems of which he display 6 at a time. 3 on left pane and 3 on right with following conditions.
The Gems are armanet, diamond, sapphire, garnet, opal, and ruby.
Armanet should alwaz be displayed on right.
diamond alwaz on right
Ruby should not be displayed with diamond or garnet
Emerald and sapphire should be alwaz displayed together.
i. What are the possible combinations for left pane?
a) armanet,garnet,opal
b) armanet,ruby,garnet
c) diamond,emerald,sapphire
d) armanet,emerald,garnet
ii. What are the possible combinations for the right pane?
a) Diamond,garnet,opal
b) Diamond,ruby,opal
c) Armanet,emerald,sapphire
d) Diamond,garnet,ruby
iii. If diamond, opal.. in right pane what is the possible combntn in left pane. 4 or 5 options
iv. If 2 other gems in one pane, possible combi in the other. I don't remember exactly But ans for the whole question was like
1. a)
2. a)
3. b)
4. e)
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