1. There are 4 married couples, out
of which, 3 poeple in a group is needed. But there
should not be his or her spouse in the group. How many
groups are possible?
Ans: 32.
2. In the 4 digits 1,2,3,4, how
many 4 digited numbers are possible which are
divisible by 4? Repeatations are allowed.
Ans: 64.
3. Two men are going along a track
of rail in the opposite direction. One goods train
crossed the first person in 20 sec. After 10 min the
train crossed the other person who is comming in
opposite direction in 18 sec. After the train has
passed, when the two persons will meet?
Ans: Approx.
72 min, check it once.
4. The no. of children, adults. The
no. of adults the no. of boys. The no. of boys no. of
girls. The no. of girls no. of family. Conditions:-
1. No family is without a child.
2. Every girl has at least one brother and sister.
Ans: c > a
> b > g > f; 9 6 5 4 3.
6. There are 4 boys - Anand,
Anandya, Madan and Murali with nic-names perich, zomie,
drummy and madeena not in the same order. Some
conditions.
Ans: Anand :
Perich
Anandya : Drummy
Madan : Zombie
Murali : Madeena
7. There are 2 diamonds, 1 spade
and 1 club and 1 ace and also 1 king, 1 jack and 1 ace
are arranged in a straight line.
1. The king is at third place.
2. The left of jack is a heart and its right is king.
3. No two red colours are in consecutive.
4. The queens are separated by two cards.
Write the order of which suits
(hearts ,clubs)and names (jacks queens etc.) are
aranged?
8. Write each statement as true or
false.
8 Marks
1. The sum of the first three
statements and the second false statement gives the
true statement.
2. The no. of true statements > No. of false
statements.
3. The sum of second true statement and first false
statement gives the first true statement.
4. There are atmost 3 false statements.
5. There are no two consequtive true statements.
9. Question on Venn diagram.
All handsome are also fair skinned.
Some musculars are fair skinned.
Some musculars are also handsome.
All lean are also muscular.
Some lean are also fair skinned.
All rich man are not fair skinned but all rich men are
handsome.
10. There are 3 piles each contains
10, 15, & 20 stones. There are A, B, C, D, F, G
and H persons. One man can catch upto four stones from
any pile. The last man who takes will win. If first A
starts next B and so on, who will win?
Ans: May be F.
Essay Writing
1. Intrnet revolution.