Pencils can be purchased in packages of 12 or 25. If Karl purchased 8 packages to get 135 pencils, how many packages of 12 did he buy?

Question

asked May 6, 2022 38.6k views

1 Answer

Ahnbizcad · Answer 1 · 2022-05-11T01:25:14+0000

Answer: 60

Explanation:

list all of the multiples and choose the least common number

10: 10 20 30 40 50 60 70 80 90 100

12: 12 24 36 48 60 72 84 96

find a number that shares all the prime factors of the two numbers

prime factors of 10: 2, 5

prime factors or 12: 2, 2, 3

LCM = 60