Question

If the average of p and q is 20, the average of q and y is 25, the average of p, q and y is 23, then what is the average ol p and y ?

Answer 1

answer is p+q/2=20
p+q=40.........(1)
q+y/2=25
q+y=50.........(2)
p+q+y/3=23
p+q+y=69
40+y=69
y=29
from 2
q+y=50
q=50-29
q=21
substitute in 1
p+q=40
p=40-21
p=19
p+y/2
19+29/2
48/2
=24
I HOPE THIS WILL HELP U

Answer 2

Answer:

Step-by-step explanation:

Average of p and q is 20

Then their sum

p + q = 20x2 = 40...............(1)

Similarly q+y= 25x2= 50........(2)

p + q + y = 23x3= 69..........(3)

(3) -(1) we get

y = 29

(3) -(2) we get

p = 19

Sum of p and y,,

p+ y = 19+29 =48

Average of p & y = 48/2 = 24

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