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DPP: 1, , Topic: Quadratic Equations, , Class: X, , 1., , A two digit number is such that the product of the digits is 12. When 36 is added to the, number the digits interchange their places. Formulate the quadratic equation to, represent the given situation., , 2., , Sum of the areas of two squares is 468 m2. If the difference of their perimeters is 24 m,, formulate the quadratic equation to find the sides of the two squares., , 3., , A train travels 360 km at a uniform speed. If the speed had been 5 km/h more, it would, have taken 1 hour less for the same journey. Form the quadratic equation to find the, speed of the train., , 4., , If x = 2 and x = 3 are roots of the equation 3x2 – 2kx + 2m = 0, find the value of k and, m.