Question

Insert three arithmetic means between 25 and 9​

Answer 1

21, 17, 13

Explanation:

Find the mean of the 2 given values

mean =
`(25+9)/(2)` =
`(34)/(2)` = 17

Noe find the mean of 25 and 17 and 17 and 9

mean =
`(25+17)/(2)` =
`(42)/(2)` = 21 and

mean =
`(17+9)/(2)` =
`(26)/(2)` = 13

Thus the 3 means are 21, 17 and 13, that is

25, 21, 17, 13, 9