The number of solution of `2x+y=4,x-2y=2,3x+5y=6` is (A) zero (B) one (C) two (D) infinitely many

40.The number of solutions of 3^(x+y)=243 and 243^(x-y)=3 is: (a) 0 (b) 1 (c) 2 (d) infinite

The number of solutions of the system of equations 2x+y=4, x-2y=2, 3x+5y=6 is

Number of triplets of a, b & c for which the system of equations, ax - by = 2a - b and (c +1)x+cy = 10-a + 3 b has infinitely many solutions and x = 1. y = 3 is one of the solutions, is: (A) exactly one (B) exactly two (C) exactly three (D) infinitely many

Number of triplets of a,b & for which the system of equations,ax-by=2a-b and (c+1)x+cy=10-a+3b has infinitely many solutions and x=1.y=3 one of the solutions,is: (A) exactly one (B) exactly two (C) exactly three (D) infinitely many

For what values of a and b, the system of equations 2x+a y+6z=8, x+2y+b z=5, x+y+3z=4 has: (i) a unique solution (ii) infinitely many solutions (iii) no solution

The pair of equations 2x-5y+4=0 and 2x+y-8=0 has (a) a unique solution (c) infinitely many solutions (b) exactly two solutions (d) no solution

The pair of equations x+2y+5=0 and -3x-6y+1=0 has (a) a unique solution (c) infinitely many solutions(d) no solution (b) exactly two solutions

If x y=2(x+y),xlt=y and x ,y in N , then the number of solutions of the equation are a. two b. three c. no solution d. infinitely many solutions

If x y=2(x+y),xlt=y and x ,y in N , then the number of solutions of the equation are a. two b. three c. no solution d. infinitely many solutions

If x y=2(x+y),xlt=ya n dx ,y in N , then the number of solutions of the equation are a. two b. three c. no solution d. infinitely many solutions