Question

The mean, median and mode of the five numbers are same. if four numbers are 7,7,5 and 7, what must be the fifth number?

Answer 1

The fifth number is 9

Explanation:

7 is the mode because it appears the most.

7 has to be the median, so the fifth number could be anything.

7 has to be the mean, so you would do:

7 x 5 = 35

35 - 7 - 7 - 7 - 5 = 9