Question

The mean of 6 numbers X - 5 x - 1 X X + 2 X + 4 and X + 12 is 15 find the mean of first four numbers.

Answer 1

Answer:

The Mean of First Four Number is 12

Step-by-step explanation:

The value of x

x-5+x-1+x+x+2+x+4+x+12/6=15

6x+12=90

6x=90-12

x=78/6

x=13

If x=13,the 6 number are

8,12,13,15,17and25

The mean of first 4 number are

8+12+13+15/4

48/4

12

Mean of first four numbers is 12

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Answer 2

Answer:

Yajej

Step-by-step explanation:

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