Question

The average of 20 number of 25.if two numbers namely 44 and42 are discard then the average of the remaining numbers is

Answer 1

Answer:

23

Step-by-step explanation:

Given

20 Numbers

Average of 20 Numbers = 25

Since,

        Average = (Sum of Observations) / (Sum of Numbers of Observations)

                   25 = (Sum of Observations) / 20

                   Sum of Observations = 25x20 = 500

44, 42 are the two numbers discarded

Remaining numbers of Observation = 20-2 = 18

Remaining Sum of Observations = 500 - (44+42) = 414

Remaining average = Remaining Sum of Observations / Remaining numbers of Observation

= 414 / 18

= 23