Hi Skawal IS the answer 336?If yes i will try to explain it further.
Guys I solved it in this way:
Here is four way you can serve the dinner.
Option-1: (Soup, Sandwich, coffee, dessert)
Option-2: (Salad, Sandwich, coffee, dessert)
Option-3: (Soup, Sandwich, Tea, dessert)
Option-4: (Salad, Sandwich, Tea, dessert)
For option-1, we can serve it 3*7*1*8 way
For option-2, we can serve it 2*7*1*8 way
For option-3, we can serve it 3*7*1*8 way
For option-4, we can serve it 2*7*1*8 way
Total number of way to serve the dinner is
=3*7*1*8 + 2*7*1*8 + 3*7*1*8 + 2*7*1*8
The key is the Or in "tea or coffee".
Say you have 7 types of tea and 2 types of coffee.
I told you, for breakfast, you can have either tea or coffee, meaning you can only have one or the other.
I then asked you, how many different drinks can I have for breakfast, you would not say 14 because that would be tea and coffee together and that is not allowed. So it would be 9, you would add because they are literally one group.
There are currently 1 users browsing this thread. (0 members and 1 guests)