Question

find it 31st problem plz fast​

Answer 1

Answer:

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