You are looking for three consecutive integers whose sum is 93. First, divide 93 by 3 and get 31. Go one above 31 and one below. You get 30, 31 and 32 which sum to 93.
B.6 would be the right answer because thats the ratebin which it drops
The answer wold be 5(2)+5(7)
Let x = the unknown number to get x = 6