Question

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Answer 1

Answer:

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girl= x,boy= y

by subtracting second equation for 1st.

(2x-4/y)-(2x+2/y)= 10-4

2x-4/y-2x-2/y= 6

-6/y= 6

y= -1.

by putting the value of y in equation 2.

2x+2/y= 4

2x+(2/-1)= 4

2x-2= 4

2x= 6

x= 3.

x-y= ?

x-y= 3-(-1)= 3+1= 4.

answer is 4.

${\huge{\overbrace{\underbrace{\pink{Verification-}}}}}$

2x-4/y= 10

2(3)-4(-1)= 10

6+4= 10

10=10

hence verified.

2nd equation-

2x+2/y= 4

2(3)+2(-1)= 5

6-2=4

4=4

hence verified.

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