Question

A stack of 12 Pennie’s is 18.24 millimeters high.How thick is each penny?How thick would a stack of 20 pennies?

Answer 1

Each penny is 1.52 mm and 20 pennies would be 30.4 mm.

Explanation:

18.24/12 = 1..52

Each penny is 1.52 mm.

20 x 1.52 = 30.4 mm