Find 7x 4y x-2y if x 2y 3 2 a 6 b 8 c 7 d data insufficient

(E) None of these...

correct ans is 25..
Let x=3 and y=1

put it in x/2y =3/(2*1)=3/2
which satisfy the given condition..
Now,we put the value of x & y in (7x+4y)/(x-2y) which is equal to 25
12 years agoHelpfull: Yes(10) No(2)
x/2y=3/2
i.e. x=3y
Substituting the value x=3y in the above equation, we get
(7(3y)+4y)/(3y-y)=25
12 years agoHelpfull: Yes(4) No(0)
divide by 2y up and down side
(7(x/2y)+2)/(x/2y-1)
nowput the value of x/2y=3/2
(7*3/2+2)/(3/2-1)
=25
12 years agoHelpfull: Yes(3) No(0)
x/y=3.
then (7*3+4)/(3-2)=25
10 years agoHelpfull: Yes(1) No(1)
ans is 7
multiply 1/2y into both num and denominator
(1/2y)*(7x+4y)/(1/2y)*(x-2y)
put the value of x/2y=3/2
i.e we get 7
9 years agoHelpfull: Yes(1) No(0)
if x/2y = 3/2

then x = (3 x 2y) / 2
x = 6y/2
x=3y

then

putting value of x in our eq

==> (7 x 3y + 4y) / (3y-2y)
==> (21y+4y) /y
==> 25y/y
==> 25
9 years agoHelpfull: Yes(0) No(1)
x/y=3
y(7*x/y+4)/y(x/y-2)=(7*3+4)/3-2=25
9 years agoHelpfull: Yes(0) No(1)

Find (7x + 4y ) / (x-2y) if x/2y = 3/2 ?

(a) 6

(b) 8

(c) 7

(d) data insufficient