1) If - 1<=x<= 2 and 1<=y<=3, then least possible value of (2y - 3x) is : A) 0 B) -3 C) -4 D) -5 Answer: Option CExplanation:y>=1 => 2y >= 2 x<=2 =>-3x >= -6 =>(2y - 3x) >= -4 Note: Take minimum value of y and maximum value of x, we will get the answer