fast

1) The number of rectangles that you can find on a chess board? a) 1196 b) 1096 c) 1296 d) 1000 2) The number of 5-digit tele phone numbers having atleast one of their digit repeated is a) 90,800 b) 10,068 c) 30240 d) 69760 3) How many arrangement can be formed of the word "ORANGE" when vowels occupy odd place