Question

The mean of the numbers 6, A + 3,5,3A-2 is 5 find the value of A.​

Answer 1

Answer:

If the mean of the numbers 6 , A+3, 5, 3A-2 is 5, then the value of A is 2

Step-by-step explanation:

Given

Mean of the numbers 6 , A+3, 5, 3A-2 is 5

Mean of n numbers = sum of all observation / total number of observations(n)

Here, total number of observations is 4

Mean of the 4 numbers = 5

Therefore

$5=\frac{6+(A+3)+5+(3A-2)}{4} \\\\5= \frac{6+A+3+5+3A-2}{4}\\\\5=\frac{14-2+4A}{4} \\\\5=\frac{12+4A}{4} \\\\5=\frac{4(3+A)}{4} \\\\5=3+A\\A= 5-3\\\\ =2$

Therefore value of A is 2

Answer 2

Answer:

2.5

Step-by-step explanation:

5=6+a+3++5+3+3+3a-2. /5

25=15+49

4a=10

a=10/4

a=2.5