Question

When the integers 10, 0, 5, -5, -7 are arranged in descending or ascending order, then find out which of the following integers always remains in the middle of the arrangement.

(a) 0
(b) 5
(c) -7
(d) -5

Answer 1

To arrange these integers in ascending or descending order, first we locate these points on numbers line.

As we know, if a point or number lies on the right side to the other number, then the number is greater. Then
Ascending order $\to$ -7, -5, 0, 5, 10
Middle term = 0
Descending order $\to$ 10, 5, 0, -5, -7
Middle term = 0
Hence, zero always remains in the middle of the arrangement.