Respuesta :
1 because only 1 can fit in all of them ( • ) means multipy so 1 • 5 =5 1•6=6 1•7=7
Write out the multiples:
5, 10, 15 etc
6, 12, 18 etc
7, 14, 21, etc
The first number that appears in all three lines will be 210.
5, 10, 15 etc
6, 12, 18 etc
7, 14, 21, etc
The first number that appears in all three lines will be 210.