(a) 0
(b) 1
(c)
(d)
Q-9. If then the values of a and b are
(a) a = 11, b = 11
(b) a = 11, b = 6
(c) a = 11, b = - 6
(d) a = -11, b = - 6
Q-10.If the sum of three consecutive odd numbers is 57, and then the middle number is
(a) 17
(b) 19
(c) 21
(d) 23