40 x 39 x 38 x 37 = 2193360
4 x 3 x 2 different ways, ie 24
24
There are 24 ways (4 times 3 times 2 times 1) to put 4 different letters in order.
The different methods evolved separately. Also, different ways are sometimes better in different situations.
I think 4 different ways
40 x 39 x 38 x 37 = 2193360
4! = 24, they can be arranged in 24 different ways
1. Measure 2. Serve 3. Recycle 4. Instrument
4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.
24 ways
4 x 3 x 2 different ways, ie 24
There are a few different ways of writing a ratio, which are shown here:As a fraction- like 3/4, or like this 3:4 or 3 to 4
24
19 ways
4
There are 24 ways (4 times 3 times 2 times 1) to put 4 different letters in order.