Q1: (256)^0.16 x (256)^0.09 = ?

ANS:A - 4

(256)^0.16 x (256)^0.09 = (256)^{(0.16 + 0.09)}    = (256)^0.25    = (256)^(25/100)    = (256)^(1/4)    = (4⁴)^(1/4)    = 4^4(1/4)    = 4¹    = 4