Question

13. The cost of 1 gross of pencils is 432. What is the cost of such 1 dozen pencis?
14. A gross of balloons costs 720. What is the cost of 15 balloons?​

Answer 1

Answer:

gross meaning

Step-by-step explanation:

13-devide the amount from 1 gross and multiply by 1 dozen

Answer 2

Answer:

13. 1 Gross of pencils cost = 432

1 Gross = 12 dozen

1 Gross = 144 pencils

432 ÷ 144 = 3

Cost of 1 Pencil = 3

14. A Gross of Balloons cost = 720

Cost of 1 Balloon = 720 ÷ 144 = 5

Cost of 1 Balloon = 5

Cost of 15 Balloons = 5 × 15 = 75