Question

the average of two numbers x and y is 18.if y =20 then x=?

Answer 1

then x equal 16 it's easy enough

Answer 2

Hello friend,
Average of. 2 numbers = 18 i e
Sum of the 2 numbers/ no.of numbers=18
x+y/2=18. Given, y=20
x+20/2=18
x+20=18*2
x+20=36
x=36-20
x=16

Hope it helps you dear