Yen has more than 30 but less than 40 caramel apples. If she puts them equally into bags of 7, she would be short of 3 caramel apples. If she puts them equally into bags of 6, she would have 3 extra caramel apples. How many caramel apples does Yen have?
Multiples of 7: 21, 28, 35, 42
Multiples of 7 (-3): 18, 25, 32, 39
Multiples of 6: 18, 24, 30, 36, 42, 48
Multiples of 6 (+3): 21, 27, 33, 39, 45, 51
Common number more than 30 but less than 40: 39
Number of caramel apples that Yen has = 39
Answer(s): 39