What is the probability that the selected number is not divisible by 7?

Question

Out of all the 2-digit integers between 1 and 1000, a 2-digit number has to be selected at random. What is the probability that the selected number is not divisible by 7?                                                                                                     

      (a) 13/90                                                             (b) 12/90

      (c) 78/90                                                             (d) 77/90