find it 31st problem plz fast
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Step-by-step explanation:
hey mate....
we know that mean is the average of the given nos.
so. mean = [1/2+1/3+1/5+1/6] / 4
= [(15+10+6+5)/30] / 4
= (36/30)/4
= 36/30×4
= 36/120
= 6/20
so mean of these numbers is 6/20
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