Question

Sum of two nos is 24 and their difference is l2 ,,,a) from the equations,,, b) find the numbers

Answer 1

Let the no be x and y
so
x + y = 24
x -y = 12

2x = 36
x = 18

18-y = 12
y = 6

Answer 2

let the two numbers be x and y
case 1: sum of x and y is 24
x + y = 24. -----> (eq1)
case 2:difference of x and y is 12
x - y = 12-----> (eq2)
adding equation 1 and 2
we get,
x + y = 24
x - y = 12
---------------
2x = 36
x = 36/2
x = 18
if x = 8 then ,
x + y = 24
18+y = 24
y =24-18
y = 6
there fore the tro numbers are 18 and 6

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