Question

Numbers 5, 15, 20, x, 28, 30, 35 are in ascending order and have median = 23; then the value of x is ______.

विकल्प

• 24

• 29

• 17.5

• 23

Answer 1

Numbers 5, 15, 20, x, 28, 30, 35 are in ascending order and have median = 23; then the value of x is 23.

Explanation: 

Given, numbers:

5, 15, 20, x, 28, 30, 35

The number of terms (n) are 7, which is odd.

∴ Median = `(n+1)/2`​ th term

Substituting value we get:

⇒ `23 = (7+1)/2` th term

⇒ 23 = `8/2` th term

⇒ 4 th term = 23

⇒ x = 23