Q)
(chatquestion)...(A) 30
(B) 60
(C) 90
(D) 120
4.
The number of ways in which 3 numbers can be belected from first 45 natural numbers such that they are
in arithmetic progression, is -
(A) C,
(B) "C, + "C,
(C) "C, + "C,
(D) "C, + "C,
5.
Let there are 5 apples (3 alike and 2 different), 4 mangoes (2 alike and 2 different) and 3 guavas (all
different). The number of ways in which all of these fruits can be distributed between two children
equally and each having exactly two identical fruits -
(A) 35
(B) 70
(C) 105
(D) 140
Let 13 seats in a straight line are to be occupied by 4 persons. The number of ways in which there should
be exactly four empty seats and no other person between two particular persons is-
6.
(C) 16CC)
(A) 15('C,)
(B) 30(°C,)
(D) 32('C,)
Let A = {a, a2, d3
The number of ways in which subsets can be formed such that (P-Q) contains exactly 2 elements, is
.} be a set containing n elements. Two subsets P & Q of it is formed independently.
7.
%3D
(C) "C, 2"
(D) None of these
(B) "C, 3"-2
(A) "C, 2"-2
The number of arrangements of the letters of the word SATAYPAUL such that no two A are together and
8.
middle letter is consonant, is
(D) (60) x 5!
(C) 5!4!
(B) 5!6!
(A) (5!)
be formed from the letters of word MAYANK' such that
...
