A store gave away a $5 gift card to every sixth customer and a $10 gift card to every tenth customer.Which customer would be the first one to receive both a $5 and a $10 gift card?please help
i do not understand
Multiples of 10:
10, 20, 30, 40
Multiples of 6:
6, 12, 18, 24, 30, 36, 42