Respuesta :

4, 8, 12, 16, 20, 24, 28, 32, 36, 40  = 10 numbers that are multiple of 4

5, 10, 15, 20, 25, 30, 35, 40 = 8 numbers that are multiple of 5


10 + 8 = 18 total numbers are multiple of 4 or 5