ONE WAY TO AVOID A LOT OF COMPUTATION ON THE GMAT IS TO LOOK FOR P...
37. One way to avoid a lot of computation on the GMAT is to look
for patterns. In this case, notice that you can factor out .1111 from
each of the four terms as follows:
.1111(9 + 8 + 7 + 6) = .1111(30) = 3.333
The correct answer is C.