Question

Show 231 using the same number of tens and ones

Answer 1

10n + 1n = 11n = 231, and n = 21

Explanation:

Let that "same number" be n. Then 10n + 1n = 11n = 231, and n = 21.

Check: Do 21 tens and 21 ones add up to 231?

210 + 21 = 231 ? YES