Question

018. X and Y are two positive numbers, X+Y=220 and the difference between X and Y is 20, then what is the value of a X and Y​

Answer 1

x + y =220 - i

x - y = 20 - ii

Using substitution

from (i)

x = 220 - y

in (ii)

(220 - y) - y = 20

220 - y - y = 20

-2y = -200

y = -200/-2

y = 100

x = 220 - y

x = 220 - 100

x = 120

Answer 2

Answer:

x=120,y=100

check

x+y=220

120+100=220

x-y=20

120-100=20

sorry mene apko solution nhi diya

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