Question

The product of two consecutive room numbers is 210. Find the room numbers.

Answer 1

104.5 and 105.5

Explanation:

Unless there are such things are 1/2 room numbers, there is no answer. But algebraically, x + x + 1 = 2x + 1 = 210

2x + 1 = 210

2x = 209

x = 104.5