1. A man sold two cows for Rs 210. If he made a 10% loss on one cow and 10% profit on the other
cow, and overall made a profit of 5%, how much was each cow worth initially?
2.A box contains white socks and black socks. you have to pull them out blindfolded, and you know
the number of socks you have to pull out to definitely draw a pair is the same as the number of socks
you have to pull out to definitely have different kinds of socks, and there is no difference between left
foot and right foot socks, how many socks are there in the box.
Ans: 4
3. A husband's watch runs 1 min fast every hour, while his wife's runs 2 minutes slow. How many
hours have past, after they set their watches to the same time, if the difference in time between the
watches is 1 hour?
Ans: 20 hours.
diff btwn my watch and hub= 2-(-1)=3
3 mts diff for 1hr
60 mts diff is (60*1)/3
4. A farmer tells his wife " If we sell 75 of our chickens, we shall have enough stock for 20 more
days." Then he says " if we buy 100 more chickens, we shall run out of our stock in 15 days". How
many chickens do they have?
5. A ,B ,c are friends they went by cycle and weared a hat.
each one weared a hat of one friends and ride the bicycle of another friend.
A is wearing C's hat find who is riding a's cycle.
ans: C
Sol: if A is wearing c's hat then it will be riding b's cycle.
if so B will be wearing A's hat no other way since A's wearing c's hat
and riding c's cycle. then remaining c will be wearing b's hat and riding A's cycle
6. While traveling from one station to the next, after 1 hour a piston burst. As a result the party could
only proceed at 3/5 their original speed and arrived 1 hour late. If however the accident had
happened 50 minutes later, they would have arrived 40 minutes earlier than the time they did arrive
at. What is the distance between the stations?
7. Find the next number in the series :
a) 364, 361, 19, 16, 4, 1, ___
Ans : 1 ( series x-3, y = sqrt(x-3), y-3 ....)
b) 3, 6, 13, 26, 33, 66, ___
Ans : 63 (Alternate additions of multiples of 10 and 20)
8. Four friends Stacy, Erica, Robin and Mandy, belonging to the families Clark, Flure, Miller and
Jacob decide to make fruit salads. Each person uses three fruits from among apples, bananas,
cherries and grapes. The following conditions are given below:
i) Each girl uses a different combination of fruit from the others
ii) Erica does not belong to the Clarks or the Millers
iii) Robin, who is not the miller's girl, uses cherries and grapes, but the Flure's girl only uses one of
these fruit
iv) Mandy and the Miller girl use both apples and cherries in their salads.
a) Which family does Robin belong to?
b) Which combination of fruit did the Miller girl use?
c) Which fruit did Erica NOT use?
d) Who is the Clark's girl?
9. A,B,C,D,E,F,G make the following statements
A: Day after tomorrow is Wednesday
B: You are wrong, tomorrow is wednesday
C: No, tomorrow is thursday.
D: All of you are wrong, it is not Monday, Tuesday or Wednesday
E: Tomorrow is Friday
F: Today is Wednesday
G: Anyway, yesterday was not saturday.
All but one person is correct.
Whos is correct and what day is it?
Ans : G (not sure)
10. Six men decide to cut logs in 1/2 yards for a fire. The men are A, B, C, D, E, F ( these are all
their first names). They work in pairs. with A, C and E being leaders of each pair. A and B cut 1½
yard logs, C and D cut 2 yard logs and E and F cut 1yard logs.
J and K manage to make 26 logs, L and M 27 logs and N and O 28 logs (these are all their last
names). The headmaster congratulates J,L and N on their fine leadership. What is B's last name?
( Note actual names were different, some confusing russian names )
Ans: B's last name is M. When you cut 1 and a half logs into half logs you get three half logs. Only 27
is a multiple of 3, and A is a captain.