Question 1076232
Let n be the first room number. Then the second room number is n+1. So:
n(n+1)=156
n²+n-156=0
(n+13)(n-12)=0
n=12 or -13
Using the positive value, we get the room numbers to be 12 and 13. &#9786;&#9786;&#9786;&#9786;