Lynn has more than 40 but less than 50 chocolate bars. If she puts them equally into packets of 7, she would be short of 6 chocolate bars. If she puts them equally into packets of 8, she would have 3 extra chocolate bars. How many chocolate bars does Lynn have?
Multiples of 7: 28, 35, 42, 49, 56
Multiples of 7 (-6): 22, 29, 36, 43, 50
Multiples of 8: 24, 32, 40, 48, 56
Multiples of 8 (+3): 27, 35, 43, 51, 59
Common number more than 40 but less than 50: 43
Number of chocolate bars that Lynn has = 43
Answer(s): 43