1.If the variance of the terms in an increasing A.P. b1,b2,b3,…,b11b_1, b_2, b_3, \dots, b_{11}b1,b2,b3,…,b11 is 909090, then the common difference of this A.P. is:a.111b.222c.333d.444Login to continueOnly logged in users canattempt or see the solution.
