Helen follows a gluten-free diet and is at an Indian restaurant with her friends.
On the menu there are 22 main dishes, of which 4/11 are gluten-free.
7 rice dishes, which are all gluten-free.
5 naan breads, of which 40% are gluten-free.
There is a meal deal on the menu – choose one main dish, one rice dish and one naan bread.
How many of the possible meal deals are totally gluten free?
Answer:
Number of gluten free:
Main dishes = 4/11 * 22 = 8
Rice dishes = 7
Naan breads = 5 * 0.4 = 2
So total combination of dishes = 8 * 7 * 2 = 112 different meal deals