Question

How many ways can the train be made up?

Answer 1

16c9

Explanation:

First, we will add up the number of different car possibilities. This is:

6 + 7 + 3 = 16.

Then, we need to take 9 of these 16 cars, giving us 16c9.

Hope this helped!

Answer 2

4,151,347,200

Explanation: