There are some small cubes and some large cubes in a bag. The cubes are red or the cubes are yellow.
The ratio of the number of small cubes to the number of large cubes is 4:9
The ratio of the number of red cubes to the number of yellow cubes is 3:5
a) What is the least possible number of cubes in the bag?
All the small cubes are yellow.
b) Work out the least number of large yellow cubes in the bag.
Your final line must say, ... large yellow cubes