find mean of first 30 odd number
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Step-by-step explanation:
First 30 odd numbers are 1,3,5,..
Here,a=1,d=3-1=2
tn=a+(n-1)d
t30=1+(30-1)2
=1+29×2
=59
S30=30/2[1+59]
=15×60
=900
Mean=900/30=30
Mean is 30.
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