Question

Kylie's Stationery sells thank-you cards in packs of 6 and birthday cards in packages of 3. Surprisingly, the store sold the same number of each type of card this month. What is the minimum number of each card type that the store must have sold?

Answer 1

6 thank you cards and 6 birthday cards

Explanation:

x = thank you cards

y = birthday cards

since the same number is sold,

6x = 3y

lcm of 6 and 3 is 6

Therefore 6 thank you cards and 6 birthday cards were sold