b. K ={ x: x ∈ N, x is a multiple of 5 and < 400}
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Answered by
3
Answer:
K={5,10,15,20,25,30,35,40,----100,105,110,-------------,385,390,395}
Answered by
2
Step-by-step explanation:
so K is a set of all those numbers which are multiple of 5 from 5 to 395.
The question is not clear, but if you are asking the size of set, it is 395/5 = 79
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