Question

The mean of 2, 7, 6, x is 5 and mean of 18, 6, x, y is 10. What is the value of y?​

Answer 1

Answer:

x=5

y=11

Step-by-step explanation:

Mean is the average of the given numbers

2,7,6,x is 5

The average of the given 4 number is 5

The given number is written as

(2+7+6+x)/4=5

((8+7+x)/4=5

(15+x)/4=5

15+x=20

x=20-15

x=5

We have found the value of x

So, we substitute the x value in the equation

(18+6+x+y)/4=10

(24+5+y)/4=10

(29+y)/4=10

29+y=40

y=40-29

y=11