If `2x=3y\ a n d\ 4y=5z ,` then `x : z=` (a) `4:3` (b) `8: 15` (c) `3:4` (d) `15 :8`

If 2x=3y and 4y=5z, then z:z=4:3(b)8:153:4(d)15:8

If 2x+y=17;y+2z=15 and x+y=9 then what is the value of 4x+3y+z?(a)41 (b) 43(c)45 (d) 55 (e) None of these

If 3x-4y+z=7; 2x-z+3y=19 ; x+2y+2z=24 , then what is the value of z ? (a) 4 (b) 5 (c) 6 (d) 8

In Figure,if (y)/(x)=5 and (z)/(x)=4, then the value of x is 8^(0)( b) 18^(0)(c)12^(0) (d) 15^(0)

If 2x+3y=31,backslash backslash y-z=4 and x+2z=11, then what is the value of x+y+z?( a )12 (b) 13 (c) 15 (d) 16

The number of solutions of the system of equations: 2x+y-z=7,\ \ x-3y+2z=1,\ \ x+4y-3z=5 is (a) 3 (b) 2 (c) 1 (d) 0

If P is a point (x ,y) on the line y=-3x such that P and the point (3, 4) are on the opposite sides of the line 3x-4y=8, then x >8/(15) (b) x >8/5 y<-8/5 (d) y<-8/(15)

If P is a point (x ,y) on the line y=-3x such that P and the point (3, 4) are on the opposite sides of the line 3x-4y=8, then x >8/(15) (b) x >8/5 y<-8/5 (d) y<-8/(15)

2x-3y+5z=16, 3x+ 2y-4z= -4, x + y - 2z =- 3.

The equation of the plane which is equidistant from the two parallel planes 2x-2y+z+3=0 and 4x-4y+2z+9=0 is a) 8x-8y+4z+15=0 b) 8x-8y+4z+15=0 c) 8x-8y+4z+3=0 d) 8x-8y+4z-3=0