INFOSYS PLACEMENT PAPERS ----- Placement Paper 6

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INFOSYS TECHNOLOGIES LIMITED.
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Question Paper
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Part 1.
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(1) 9 cards are there. u have to arrange them in a
3*3 matrix.
cards are of 4 colors.they are red,yellow,blue,green.
conditions for arrangement: one red card must be in
first row
or second row.2 green cards should be in 3rd
column.Yellow
cards must be in the 3 corners only. Two blue cards
must be in
the 2nd row. Atleast one green card in each row.
Solution:
Yello Red Gren
Blu Blu Gren
Yello Gren Yello
2. 4 cards are placed on a table, each card has two
colors. U
don't know the color of the back side of eachcard.4
persons A
B C and D are sitting on the table before the cards.
They can
see Red, Green Red and blue .Out of the 4 poeple 2
always lie.
They see the color on the reverse side and give the
following
comment
A: Yello/green
B: Neither Blue/nor Green
c: Blue/Yello
D: Blue/ Yello
find out the color on the other side of the 4 cards.

3.Red and brown tribes [FROM BARRONS GRE] Conditions
to
get married with each other.

4. Venn diagram regarding Rich, muscular, soft-
skinned,
employed, etc.,( Refer BARRONS GRE GUIDE)

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PART 2.
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1. SAKUNTALA DEVI'S PUZZLE BOOK : PUZZLES TO
PUZZLE YOU.
problem no: 3. ( Brothers and Sisters)
A family I know has several children. Each boy
in this
family has as many sisters as brothers but each
girl has
twice as many brothers as sisters. How many
brothers
and sisters are there?
ans: 4 boys and 3 girls.
2. No. of animals is 11 more than the no. of
birds. If the
no. of birds were the no. of animals and no. of
animals
were the no. of birds( ie., interchanging no.s
of animals
and birds.), the total no. of legs get reduced
by one fifth
(1/5). How many no. of birds and animals were
there?
ans: birds:11,animals:22
3. In a soap company a soap is manufactured with
11 parts.
For making one soap you will get 1 part as
scrap. At the
end of the day u have 251 such scraps. From
that how many
soaps can be manufactured? ans: 22 + 2+ 1 = 25.
4. 2 * * |
3 * * | No. 7 does not occur
in this
---------------- |
5 * * | multiplication.
* 4 * |
* * 3 | Find the product.
---------------- |
* * * * * |
---------------- |
------------------------------------------------
--
ans 2 8 1
3 2 2
-----
5 6 2
5 6 2 0
8 4 3 0 0
---------
9 0 4 8 2
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5. There is a 5digit no. 3 pairs of sum is
eleven each.
Last digit is 3 times the first one.
3 rd digit is 3 less than the second.
4 th digit is 4 more than the second one.
Find the digit.
ans : 25296.
6. There are five thieves, each loot a bakery
one after the
other such that the first one takes 1/2 of the
total no.
of the breads plus 1/2 of a bread. Similarly
2nd, 3rd,4th
and 5fth also did the same. After the fifth
one no. of
breads remained are 3. Initially how many
breads were there?
ans : 31.
7.ESCALATOR PROBLEM OF SAKUNTALA DEVI 'PUZZLES
TO PUZZLE'book.
Problem No: Problem 27( Down the escalator)
ans : the no of steps in the stair way : 46.
8.Harbour line and Main line Problem of
Sakuntala Devi Puzzle
book. Ans : 4/5.
( More Puzzles book)
9.There are some chicken in a poultry. They are
fed with corn
One sack of corn will come for 9 days.The
farmer decides to
sell some chicken and wanted to hold 12
chicken with him.
He cuts the feed by 10% and sack of corn comes
for 30 days.
So initially how many chicken are there?
10.Two people X & Y walk on the wall of a godown
in opposite
direction. They meet at a point on one side
and then go
ahead. X after walking for some time, walks in
opposite
direction for 15 mtrs.Then again he turns back
and walks
in the original direction. What distance did Y
walk before
they met again, if X walks 11 mtrs by the time
Y walks
8 mtrs.
11.Problem from SAKUNTALA DEVI 'PUZZLES TO
PUZZLE U'.
Problem no: 23( Walking back to happiness.)
The walking time : 55 mins.

With this The paper has been completed. For the
lack time
I have'nt typed those probs, which are in
Sakuntala Devi
Puzzle books. I wish all of you the best.
Send me the mail immediately after the written
test will
be over. thank you

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