The total number of ways in which 5 balls of different colours can be distributed among 3 persons so that each person gets at least one ball is
A
75
B
150
C
210
D
243
2
IIT-JEE 2009
MCQ (Single Correct Answer)
the number of seven digit integers, with sum of the digits equal to 10 and formed by using the digits 1, 2 and 3 only, is
A
55
B
66
C
77
D
88
3
IIT-JEE 2008
MCQ (Single Correct Answer)
Consider all possible permutations of the letters of the word ENDEANOEL. Match the statements / Expressions in Column I with the statement / Expressions in Column II Column I (A) The number of permutayions containing the word ENDEA is
(B) The number of permutations in which the letter E occure in the first and the last positions is
(C) The number of permutations in which none of the letters D, L, N occurs in the last five position is
(D) The number of permutations in which the letter A, E, O occurs only in odd position is
Column II (p) 5!
(q) $$\,2 \times 5!$$
(r) $$\,7 \times 5!$$
(s) $$\,21 \times 5!$$
A
(A) - p ; (B) - s; (C) - q ; (D) - q
B
(A) - q ; (B) - q ; (C) - s ; (D) - p
C
(A) - p ; (B) - s; (C) - p ; (D) - r
D
(A) - p ; (B) - r ; (C) - q ; (D) - p
4
IIT-JEE 2007
MCQ (Single Correct Answer)
The letters of the word COCHIN are permuted and all the permutations are arranged in an alphabetical order as in an English dictionary. The number of words that appear before the word COCHIN is
A
360
B
192
C
96
D
48
Questions Asked from Permutations and Combinations
On those following papers in MCQ (Single Correct Answer)
Number in Brackets after Paper Indicates No. of Questions
