Question

Sum of two number is 128 and difference is 16 find numbers

Answer 1

let the two numbers be x and y
according to the question
x+y=128 equation 1
x-y=16 equation 2

addition both the equations

2x=144
x=72
putting value of x in equation 1

72+y=128
y=128-72
y=56

hope it helps you

Answer 2

SOLUTION :

LET the 2 no.s be X and Y respectively

therefore
( X + Y ) =128 (equation 1 )
and
( X - Y )=16 (equation 2 )

now adding equations 1 and 2 we get

(X+Y)+(X+Y)=128+16

OR. 2X=144

OR. X=72

therefore Y=128-X
OR. Y = 128 -72
OR. Y = 56
ANS.
X=72, Y = 56
HOPE THIS HELPS