1.How many number of three digit even numbers than can be formed out of the digits 0 to 9 ?
The question seems confusing since there is no mention of whether repetition is allowed or not ?! since if repetition is allowed then the answer would be 450 (
5*9*10) where as if not then the answer would be 328 (
9p2+ 4*(8*8) = 328).
Am I correct about the question or am missing some point ?
2.How many calendars that can be prepared for the month of February ?
3.A golf player wants to put the ball in the hole in 5 shots. He says that he will put the ball in the hole at most by 3 shots and will qualify for the next round. how many number of possibilities of shots he had played ?
I don't have any clue for this two.