An integer is chosen at random from the first two hundreds digit. What is the probability that the integer chosen is divisible by 6 or 8. (Ans : 1/4 )
Ans: Multiples of 6 first 200 integers
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114,
120, 126, 132, 138, 144, 150, 156, 162, 168, 174, 180, 186, 192, 198
Multiples of 8 first 200 integers
8,16,24,32,40,48,56,64,72,80,88,96,104,112,120,128,136,144,152,160,
168, 176,184,192,200
Number of Multiples of 6 or 8 = 50
P(Multiples of 6 or 8) = 50 / 200 = 1/4