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Infosys Placement Paper 10 |
1. Replace each letter by a digit. Each letter must be
represented by the same digit and no beginning letter of
a word can be 0.
O N E
O N E
O N E
O N E
-------
T E N
-------
Ans: 0 =1, N = 8 ,E = 2, T = 7.
2. Ann, Boobie, Cathy and Dave are at their monthly
business meeting. Their occupations are author,
biologist, chemist and doctor, but not necessarily in
that order. Dave just told the biologist that Cathy was
on her way with doughnuts. Ann is sitting across from
the doctor and next to the chemist. The doctor was
thinking that Boobie was a goofy name for parent's to
choose,but didn't say anything. What is each person's
occupation? Ans: Since Dave spoke to the biologist and
Ann sat next to the chemist and across the doctor, Cathy
must be the author and Ann the biologist. The doctor
didn't speak, but David did, so Bobbie is the doctor and
Dave the chemist.
3. Sometime after 10:00 PM a murder took place. A
witness claimed that the clock must have stopped at the
time of the shooting. It was later found that the
postion of both the hands were the same but their
positions had interchanged. Tell the time of the
shooting (both actual and claimed).
Ans: Time of shooting = 11:54 PM Claimed Time = 10:59
PM.
4. Next number in the series is 1 , 2 , 4 , 13 , 31 ,
112 , ?
Ans: 224.
No number has digits more than 4. All of them are 1 , 2,
4, 8 , 16 , 32 , 64 converted to numbers in base 5.
5. Shahrukh speaks truth only in the morning and lies in
the afternoon, whereas Salman speaks truth only in the
afternoon. A says that B is Shahrukh. Is it morning or
afternoon and who is A - Shahrukh or Salman?
Ans: Afternoon.A is Salman.
6. Two trains starting at same time, one from Bangalore
to Mysore and other in opposite direction arrive at
their destination 1 hr and 4 hours respectively after
passing each other. How nuch faster is one train from
other?
Ans: Twice.
7. There are 6 volumes of books on a rack kept in order
( ie vol.1, vol. 2 and so on ). Give the position after
the following changes were noticed. All books have been
changed Vol.5 was directly to the right of Vol.2 Vol.4
has Vol.6 to its left and both weren't at Vol.3's
place.Vol.1 has Vol.3 on right and Vol.5 on left. An
even numbered volume is at Vol.5's place Find the order
in which the books are kept now.
Ans: 2, 5,1,3,6,4.
8. I bought a car with a peculiar 5 digit numbered
licence plate which on reversing could still be read. On
reversing value is increased by 78633.Whats the original
number if all digits were different?
Ans: Only 0 1 6 8 and 9 can be read upside down. So on
rearranging these digits, we get the answer as 10968.
9. The shape in the sketch below is that of a square
attached to half of a similar square. Divide it into
four equal pieces.
Ans: Hint : The figure can be divided into 12 equal
triangles.
10. Supposing a clock takes 7 seconds to strike 7. How
long will it take to strike 10?
Ans: 10 1/2 seconds
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