If a and b are positive integers such that a/b= 2.86, which of the following must be a divisor of a?
10
13
18
26
50
10
13
18
26
50
a/b = 2.86 = 286/100
100a = 286b
(5*5*2*2) a = (2 * 11 * 13) b
therefore, 'a' should be 11 (or) 13. B IMO
