Q1 of 11 Page 225

Find different sets of 6 different numbers between 10 and 30 with each number given below as mean:

20

Given: 6 numbers and their average is 20 between 10 and 30.

As the given average is 20 and numbers = 6


Hence, the sum of numbers must be = 20 × 6 = 120


So, Set having different numbers between 10 and 30 = {12, 13, 15, 25, 27, 28}


Average =(12+13+15+25+27+28)/6


= 120/6


= 20


Which is true as per given condition.


Hence, the required set is {12, 13, 15, 25, 27, 28}.


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Find different sets of 6 different numbers between 10 and 30 with each number given below as mean:

15

 1

Find different sets of 6 different numbers between 10 and 30 with each number given below as mean:

25