Question

Q. 13 (b) The mean of 2, 7, 6 and
x is 15 and the mean of 18, 1, 6, X
and y is 10. What is value of y? ​

Answer 1

Answer:

y = 21

Step-by-step explanation:

Mean = 15 =:( 2 + 7 + 6 +×) / 4

15 + x = 60

x= 60/15 = 4

Another mean = 10 = ( 18 + 1 + 6 + 4 + y) /5

29 + y = 50

y = 50 - 29 = 21

y = 21