Find the mean of the first 10multiple of 3.
a.
16.5
b.
23
c.
13
d.
14.5
Answers
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1
Answer:
a) first 10 multiples of 3 are 3,6,9,12,30.
This is an AP with a=3, n=10, and I=30.
therefore sum=n2(a+I) =102.(3+30)=165.
Therefore mean,`x =16510 =16.5.
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