You are skier A, the first skier in a skiing event with three other skiers. Compared to your time, skier B is slower, by a time of +00:28. Skier C has a time of +2:13, and skier D has a time of -01:24.

1. Who is the fastest skier?
2. Since all times are compared to yours, what is your time?
3. What is the order of times, from fastest to slowest?

Add b+c+d =a

To determine the answers to these questions, let's break down the information given:

1. Who is the fastest skier?
The fastest skier can be determined by comparing the times with reference to Skier A. Let's compare the time differences:

- Skier B is slower by a time of +00:28 (28 seconds).
- Skier C is slower by a time of +2:13 (2 minutes and 13 seconds).
- Skier D is faster by a time of -01:24 (1 minute and 24 seconds).

Considering these time differences, Skier D is the fastest skier as they have the shortest time difference, meaning they finished the race before Skier A.

2. What is your time?
Since you are Skier A and the question refers to your time, we need to figure out how much time has passed during the race. The information provided doesn't give us the actual times, only the time differences compared to Skier A. Therefore, we cannot determine your exact time without additional information.

3. What is the order of times, from fastest to slowest?
Based on the information provided, we can establish the order of times:

- Skier D: -01:24 (1 minute and 24 seconds faster than Skier A)
- Skier B: +00:28 (28 seconds slower than Skier A)
- Skier C: +2:13 (2 minutes and 13 seconds slower than Skier A)

So, the correct order from fastest to slowest is Skier D, Skier B, Skier C.