Math, asked by Mahica8846, 10 months ago

If the average is 18,15×,22,28and 31 is 21 then value of x is

Answers

Answered by Anonymous

0

Step-by-step explanation:

औसत = राशियों का योग / राशियों की संख्या

21 = (18 + 15x + 22 + 28 + 31)/5

105 = 99 + 15x

15x = 6

x = 6/15 = 2/5 = 0.4

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