Question

if x and y are two positive numbers such that x-y=270 and the sum of x and y is 390 , then the values of x and u are respectively

$options \: are =$
(a) 300 , 30
(b) 380 , 80
(c) 380 , 110
(d) 330 , 60

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Answer 1

Given that

x+y = 220

x-y =20

Adding both the equations

2x = 240

x =120

Substitute x in equation 2

120-y = 20

y = 120 - 20

y = 100

x = 120, y =100

Answer 2

Answer:

If x and y are two positive numbers, x + y = 220 and the difference between x and y is 20, then what are x and y?

Given that

x+y = 220

x-y =20

Adding both the equations

2x = 240

x =120

Substitute x in equation 2

120-y = 20

y = 120 - 20

y = 100

x = 120, y =100

Step-by-step explanation:

i hope u understand

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