Dana has some balls. If she packs them in packets of 5, she will have 2 extra balls. If she packs them in packets of 7, she will have 4 extra balls. What is the minimum number of balls Dana has?
Multiples of 5: 5, 10, 15, 20, 25, 30
Multiples of 5 (+2): 7, 12, 17, 22, 27, 32
Multiples of 7: 7, 14, 21, 28
Multiples of 7 (+4): 11, 18, 25, 32
Minimum number of balls that Dana has = 32
Answer(s): 32
