The amount of fruit candy is 3 times the amount of chocolate, then, if you eat 1 chocolate per day, then you have to eat 3 fruit candies per day at the same time, chocolate and fruit candies can be eaten on the same day, but the actual daily only eat 2 fruit candies per day, one less candy per day, 7 divided by 1 is equal to eat 7 days. 7 days, a day to eat 2 more 7 is 7 times 2 plus 7 equals 21.