Set R contains five numbers that have an average value of 55

[jnelson0612]

thanks jamie.. does this mean that
we cannot conclude that numbers are in A.P if the mean= median..

but if the numbers are in AP, mean will be equal to median..

Hope I got it right.

Got it! Thanks for clarifying A.P.

Consider this sequence:

0, 1, 5, 9, 10

The median is 5. The mean is also 5. But this is not an arithmetic progression. So no, we cannot conclude that. Good question!

[sachin.w]

Thanks Jamie :)

[jnelson0612]

Thanks Jamie :)

You are welcome! :-)