Answer:
a
Step-by-step explanation:
Permutation
Step-by-step explanation:
- Permutation is an example of the mathematics in which item are arranged in different way.
- For example ABC, ACB, BCA, CBA, CAB, BAC etc.
- The order of an arrangement are different in each alphabet.
- The product of number also be defined as in the form of n to 1
- for example : 5*4*3*2*1 = 120
Learn more: permutation
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Answer:
Runners that decrease times are not improving
Step-by-step explanation:
Answer:
it is the 3rd option
Step-by-step explanation:
