If 2x2 -5xy + 3y2=0, then x:y=……….
A. 2:5 B. 5:3 C. 1:1 D. 1:1 (or) 2:3 E. 3:2 (or) 1:1
- If xy = x + y, where x and y are real numbers, then y cannot be
A.0 B.1 C. -1 D.2 E. -2
- If 3a = 4b = 5c, then 1/a:1/b:1/c =…………
A. 1/3:1/4:1/5 B.1/5 :1/4: 1/3 C. 1/4:1/5:1/3 D. 3:4:5 E.5:4:3
- If x:y:z =2:3:4 and x + y +z = 18 , then xyz = …………
3)2=11 B. (p+3)2=11 C. (p+3)2=7 D.(p-3)2=7 E. None of these
- The solution set of the equation (x+1)(x-7)=-12 is
A.{-1,7} B. {1,5} C. {-1,-5} D. {1,-7} E.{1,-5}
