
INFOSYS POWER PREPARATION
Puzzles
1 To get a dress 4 her marriage a girl sends her
friend to the market to get her a wedding dress,
she tells her friend to buy a dress of x feet
& y inches. but her friend gets confused &
buys a dress of y feet & x inches,,this dress
what her friend bought is 5/8th of the original
dress. what was the orignal measurement?
ans..7feet 4 inches.
2. A cube of volume 1000cm3 is divided into small
cubes of 1cm3 ..& all the outer surfaces are
painted how many cubes will be there with (atleast
one side painted or no side painted)..
ans : 512 & 1000-512 ( check......)
3. A man has to work 4 70 days..each day he works
he get x(say) Rs, & if he doesnt go y(say)
RS r cut..in all after 70 days he gets z(say)
Rs, how many days he went to the office,,
ans:35days ( i dont remember the figures
x y z)
4. A woman has x Rs she spends 3/8th of the
amount on shopping .& 1/2 of what remains
on beautyparlour.she
keeps 1/2 of what remaining & spends a/b(say)
part on furniture.. now she is left with b Rs..
how much did she have earlier.
ans : 42 Rs
2 ques from critical reasong( analytical reasoning
) ( 6 marks each),, 2 were tough & 1 was easy...do
from Barons GRE(old book)( take critical reasoning
book from akku IMS BOOK).
7.There r 3 people lucy jourge & matthew,
each gave 3 statements abt there ages , abt others
2s ages and the difference in other 2s ages. now
consider any 2 of each of these 3 statements to
be true.. now find out what r their correct ages.
ans: 22 23 25
10 In a circuler track a tortoise & rabit
started in opp. direction.. rabit started only
when tor. covered 1/8 th of the track after that
rabit started with some speed ( given dont remember)
& covered 1/6 th of the track..till that time
tor continued his journy with same speed.. with
what speed should rabit now move so that it may
reach before tor..to the starting point..
11.Three neighbors are there. 1st one lends 2nd
and 3rd that many no. of tractors that then already
each had. After few months, 2nd lends to 1st and
3rd that many tractors then they had. After a
few months 3rd lends to 1st and 2nd that many
tractors then they had. Now each of them got 24.
Find how many they had initially?
Ans: 39 21 12
12. 3 members expect which will be the elected
party among 4 parties namely Flying party, Eatwell,
Good sleep, Loosing parties X expects that either
f.p or e.w.p will win. Y expects that either f.p
or g.s will win Z expects that neither e.w.p nor
g.s.p will win One part of each members statement
is correct. Which party will win?
Ans: F.P
13. Three members are hunting in a forest. While
crossing a stream cartridges of two of them gets
wetted up. Then the third person divides his cartidges
equally. After 4 shots of each person, total cartridges
remaining are equal to what each had initially
after sharing. How many total cartridges they
initially they shared?
Ans: 18
Y
Y/3 Y/3 Y/3
Y/3-4 Y/3-4 Y/3-4
3(Y/3-4) =Y/3
Y=18
14. All members belonging to D are members of
A
do........................E.................D
do........................C.................both
A&D
Some members of A does not belong to D
do...............D......................E
15 questions are there.
5. Boys are allowed to watch football at c.v.Raman
auditorium subjected to conditions.
1. the boy over age 16 can wear overcoat
2. no boy over age 15 can wear cap
3. to watch the football either he has to wear
overcoat or cap or both
4. a boy with an umbrella or above 16 or both
cannot wear sweater.
5. boys must either not watch football or wear
sweater.
What is the appearance of the boy who is watching
football.
Ans: Who are above 15 and below 16 with cap.
:
1.My neighbor has seven children. Every brother
has equal no. of brothers and sisters, but each
sister has twice as many brothers as sisters?
Ans: 4,3
2.There are 11more animals than birds in a pet
shop. If there are as many birds as animals and
if there are as many animals as birds the no.
of legs is 4/5 of the original. How many birds
and animals are there? Ans: 22,11
3. One soap can be made out of the scraps obtained
while preparing 11 soaps. How many soaps can be
prepared out of the scrap obtained out of 251
soaps. (Take all possibilities)
Ans: 25
4. 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.
5. 2XX
3XX
---
5XX
X4X
XX3
-------
XXXXX
-------
Find out the X's and seven is not there in the
calculation.
Ans: 281x332
16. There are 5 burglars and once went to a bakery
to rob it obviously The first guy ate 1/2 of the
total bread and 1/2 of the bread The second guy
ate 1/2 of the remaining and 1/2 of the bread.
The third guy ,fourth guy and fifth guy did the
same. After fifth guy there is no bread left out.
How many bread are there?
Ans:31
17. The main line train starts at 5.00AM and
the harbor line train starts at 5.02AM.Each train
has the frequency of 10 minutes. If a guy goes
in the morning at a random time what is the probability
of he getting main line train?
Ans: 0.8
18. There is 66x33m rectangular area. Ram is
11/8 times faster than Krishna . Both of them
started walking at opposite ends and they met
at some point then, Ram said "See you in
the other end" Then they continued walking.
After some time Ram thought he will have tea so
he turned back walked back 15 meters then he changed
his mind again and continued walking .How much
Krishna has traveled by the time they meet?
19. 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?
Ans:36
20.Escalator Problem. A person walking takes
26 steps to come down on a escalator and it takes
30 seconds for him for walking. The same person
while running takes 18 second and 34 steps. How
many steps are there in the escalator?
1. There are 4 parties A,B,C,D. There are 3 people
x,y,z.
X-says A or D will win.
Y-says A will not win.
Z-says B or D will not win.
Only one of them is true. Which party won.
21. A gardener has a peculiar way of planting
trees. He plants 100 ft. towards east, then he
plants 100ft. towards north 100ft. towards west,
98fts towards south. From that 98fts towards east,
from that point 96fts towards north. When a man
starts walking in the middle of the path outside
garden. What is the total distance he traveled
to reach the centre.
Ans. 5200.
22. There is a T-agency in Mangalore and Bangalore
. Total time taken in 9hrs. Trucks starts from
both points at 6 a.m to 9 a.m in one hr intervals.
a. The truck when starts at 6 a.m in the morning
mets how many trucks on the way.
b. How many trucks a truck which starts at 9 p.m
will meet. For a and b
Ans.9
234. Ramesh has X rupees, on Monday beginning
of the month. On every Monday his mother gives
10 rupees as pocket money. He spends half of what
he had during that week on the 4th Monday of the
month, when his mother gave his pocket Monday,
he had 27 1/2 rupees . What was the Money he had
in the beginning. Ans. 70/-
24. R,S,T,U,V are contesting for a medal. Evaluation
is over, sasy English, Maths, Physics, Chemistry
and Hindi. Toper will get 5 marks, least will
get 1mark. No ties any where. R get 24 and won
the overall medal. V-get I st in Chemistry and
3 rd in Hindi, T got consistent scores in 4 subjects.
Their final standings where in the alphabetical
order. What was the score of S in Chemistry.
25. There are 3 types of castes, say A,B,C. A-
always tells truth, B- always false, C- alternating.
X says --> Z is of C type, I am of A type Y
says --> X is a B type. Z says --> X is
of B type. Who is of which type.
26.. There are two families Sinha and Gupta with
2 children each. Pratap, Praveen, Lalit and Rajesh
are 4 children. Each family has 2 children. All
the children ages are approx. to the nearest integer.
We have to find which all children are in which
family and their corresponding ages which are
11.
1. Praveen is the eldest one.
2. Pratap is 5 years older then the youngest of
the family .
3. Lalit is 1/2 of the age of the eldest of the
Gupta family.
27. In a bank there is a Teller, Manager and
Cashier says x,s etc.,
1. Teller is one who earns least
2. X has married S's sister.
3. Cashier earns more than manager.
Find out who is who.
ans. Cashier's wife is manager, X is the cashier,
S is sister of the manager.