Question

Two months ago perry has 554 rocks in his collection. He added 47 rocks to his collection last month and 39 to his collection this month. He decided to divide them all into 8 equal groups. How many rocks will be in each group?

Answer 1

80 in each group

Explanation:

554+47 = 601 (47 last month)

601+39 = 640 (39 this month)

640 / 8 = 80 (8 equal groups)