If sequence X1, X2, X3, ...Xn is such that X(n+1) is 5 more than Xn for n>=2, does X99 have a units' digit of 9?
(1) The 100 term plus 1 is a multiple of 5.
(2) The first term is 4.
A. Statement (1) ALONE is sufficient but Statement (2) ALONE is not sufficient.
B. Statement (2) ALONE is sufficient but Statement (1) ALONE is not sufficient.
C. BOTH Statements TOGETHER are sufficient, but NEITHER Statement alone is sufficient.
D. Each Statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient
obtained the eqns from given condns :
(1) states that x100+1 is div by 5 = x2+1 is div by 5 => x2 can be 4,9,14,19 etc hence units digit will vary accordingly for x99
(2) first term does not play any role hence infoi is redundant => insufficient
(1) and (2) combined also dont help hence insuffi
Its Now Or Never