Pls help 3 Fina a* + b •
Chapter 10: permutations and Combinations
Objective
Sin-* Answer correct
t. Number of ordered triplets ot natural number (a. b. c) •z 11
(A) 52
(B) 53
(C) 55
2. In a potyg.cn no three are It the total number ot points
intersection of diagonals is 1820, tho number 01 diagonals of the polygon is :
(A) 120
(B) 104
(C) 114
119
3. The number of divisorsof . . 7' of 1. n e N is:
(B) 47 (C) 49
(D) 50
q •s rit4s2. then the number ot ordered pair (p. Q) is
252
(B) 254
,vc.+-225
S. ways in which A A A B B B
can placed in the squares of the
as so that no row'
'ornar-.s ernpty, is
It r. s are prirne numbers and p, q are the positive integers such that the
(D) 224
