One of Santa's elves can make one toy each minute. Every 2 minutes 1 toy falls apart. Every 5 minutes Santa takes 3 toys. If two elves are working in a room that contains 30 toys, than how many toys will there be after an hour, assuming that Santa has just left and that the elves work for the full hour?
+128408 Santa takes away 12 * 3 = 36 toys in the hour
Number of toys that the elves can make in one hour = 2 (60) =120
Number of toys that fall apart = 60 /2 = 30
So......number of toys starting out - ones that Santa takes - number that fall apart + number that elves make =
30 - 36 - 30 + 120 =
120 - 36 =
84 toys after one hour
