Linda has more than 30 but less than 40 mochi balls. If she puts them equally into bags of 5, she would be short of 3 mochi balls. If she puts them equally into bags of 7, she would have 4 extra mochi balls. How many mochi balls does Linda have?
Multiples of 5: 20, 25, 30, 35, 40, 45
Multiples of 5 (-3): 17, 22, 27, 32, 37, 42
Multiples of 7: 21, 28, 35, 42, 49
Multiples of 7 (+4): 25, 32, 39, 46, 53
Common number more than 30 but less than 40: 32
Number of mochi balls that Linda has = 32
Answer(s): 32
