Maria is celebrating her birthday by going out for a meal with her family.
The menu at the restaurant has starters, main courses and desserts.
There are 5 starters.
There are 12 main courses.
There are x desserts.
There are 420 different ways to choose one starter, one main course and one dessert. Work out how many desserts are on the menu (the value of x).
Answer:
5 x 12 x X = 420
60X = 420
X=7