Distance between the lines 5x+3y−7=0 and 15x+9y+14=0 is
Question 16
Both x and y vary directly with each other and when x is 10, y is 14, which of the following is not a possible pair of corresponding values of x and y? (a) 25 amd 35 (b) 35 and 25 (c) 35 and 49 (d) 15 and 21