Question

If a, b, c, and d are four different digits from 1 to 9, inclusive, then what's the largest possible value for the decimal a.b + c.d?

Answer 1

18.3

Explanation:

Answer 2

18.3

Explanation:

All the digits must be different and you must use the four highest digits. Give the higher two digits a higher place value. 9.7 + 8.6 = 18.3