(3) If (1 – p) is a root of quadratic equation x2 + px + (1-p) = 0 , then its roots are

(a) 0, 1 (b) -1, 2 (c) 0, -1 (d) -1, 1

Answer (c) 0, -1
(4) How many ways are there to arrange the letters in the word GARDEN with the vowels in alphabetical order?

(a) 120 (b) 480 (c) 360 (d) 240 Answer (c) 360

(5) If one root of the equation x2 + px + 12 = 0 is 4, while the equation x2 + px + q = 0 has equal roots, then the value of ‘q’ is

(a) 49/4 (b) 4 (c) 3 (d) 12 Answer (a) 49/4
(6) A person standing on the bank of a river observes that the angle of elevation of the top of a tree on the opposite bank of the river is and when he retires 40 meter away from the tree the angle of elevation becomes . The breadth of the river is

(a) 20 m (b) 30 m (c) 40 m (d) 60 m

Answer (a) 20 m

(7) The graph of the function y = f(x) is symmetrical about the line x = 2, then