Andrew is doing some tidying. He can tidy 2 big rooms in the same time it takes to tidy 3 small rooms. He can tidy one big room and three small rooms in 90 minutes. How long will it take him to tidy 3 big rooms and 6 small rooms? - AMC (Australian Mathematical Competition) Upper Primary 2018
Want to prepare for AMC 8? Working out the problems by yourself is the only way to prepare for it. So get your brains working and write your answers in the comments section below.
Did you like the problem? Would you like to have these problems and solutions delivered to your inbox as I publish them? Click here to subscribe
Previous Week's Problem