math - 6th grade
posted by Taylor on .
Is there a quick way to do this?
In how many different ways can 1st, 2nd, and 3rd place ribbons be given to 7 finalists in a game?
ist place can be given to 7 different people, and then 2nd place can be given to 6 different people, followed by 3rd, which can now be given to one of the remaining 5 people, so
number of different ways = 7*6*5 = 210
Find the greatest common factor of 43 and 32