Some stickers are in a packet.
If Adam puts them into groups of 7, there are 3 stickers left.
If Adam puts them into groups of 9, there are 4 stickers left.
Find the smallest possible number of stickers in a packet.
Multiples of 7: 7, 14, 21, 28
Multiples of 7 (+3): 10, 17, 24, 31
Multiples of 9: 9, 18, 27
Multiples of 9 (+4): 13, 22, 31
Smallest possible number of stickers in a packet = 31
Answer(s): 31