Answer:
3 runners run a 100 meter race, the time elapsed until they finish are
runner time
A 10.124
B 10.121
C 10.128
Who is faster?
To answer this question you have to order the three times. Start the comparison with the first one.
A's running time is greater than B's running time but lower than C's running time. Then, A goes in the middle of the ordered list.
Next continue with B. B's running time is the lowest time, so it goes first in the ordered list.
Finally, C's running time is the greatest time, so it goes last in the ordered list. The ordered list is:
runner time
B 10.121
A 10.124
C 10.128