184 * 216 - 81 + 119 / 0.7 = 184/216 - 81 + 170Using the concept of digit roots we can say digit root of 180 = 1 + 8 + 4 = 13 = 1 + 3 = 4.i.e. we keep adding the digits till we get the sum as a single digit number.Digit root of 216 is 0Digit root of 81 is 0.Digit root of 170 is 1 + 7 + 0 = 8Thus the digit root of the answer must be (4)(0) - 0 + 8 = 8.(39439) digit root is 3 + 9 + 4 + 3 + 9 = 28   2 + 8 = 10   1 + 0 = 1.Digit root is 1.Similarly the digit root of 39394 is 1 digit root of 94934 is 2.Where as the digit root of 33949 is 1. Thus none of them could be the answer, hence the answer is choice (5) or 184 * 216 - 81 + 170 = 39833.