1. A hotel has 300 rooms which are all occupied. Each room can have either 1 or 2 guests and there are 420 guests staying in total. How many rooms are occupied by 2 guests?
I think theres another way to solve this but heres how i would: 420-300=120 excess guests if all rooms were occupied by one person So, there would be 120 rooms occupied by two people by that logic. to check: 120(2)+ 180(1) 240+180=420
