Question

The room numbers of two adjacent classrooms are two consecutive odd numbers. If their sum is 860, find the classroom numbers

Answer 1

I know that there are two room numbers, and they are both odd numbers. They both add up to 860. Therefore, I decided to subtract 860 by 2. This will give me an even number. 430 is the even number. I decided to add 1 to 430 to give me an odd number. Then, I subtracted 431 from 860 to give me 429. Therefore, the two numbers are 429 and 431.

Answer 2

429 & 431

Explanation:

Consecutive numbers are numbers that come right after the other.

Let x = first room number

`x+x+2=860\\2x+2=860\\2x=858\\x=429\\\\(429) + 2 = 431`

Therefore, the two room numbers are 429 and 431.