Question

Jeany bought 12 postcards which was twice as many postcards as joe bought. Ruth bought 3 times as many postcards as joe. How many postcards did they buy together?

Answer 1

Answer: they bought 36 postcards.

Explanation:

Jeany bought 12 postcards which was twice as many postcards as joe bought. It means that the number of postcards that Joe bought is

112/2 = 6 postcards

Ruth bought 3 times as many postcards as joe. It means that the number of postcards that Ruth bought is

3 × 6 = 18 postcards

Therefore, the number of postcards that they bought together would be

12 + 6 + 18 = 36 postcards

Answer 2

Answer:36 postcards

Explanation:

jenny bought 12 post cards

joe bought half of the postcards jenny bought = 12/2 = 6

ruth bought 3 times the postcards joe bought = 3 x 6 = 18

total postcards bought by all = 12 + 6 + 18 = 36 postcards