If two or more answer choices had come out to 48, then you would have had to do a little more work. Under those circumstances,
you have to pick new numbers for a and b, come up with a new value, and then plug those numbers into the answer choices that
came out the same the first time. In other words, if choices (B) and (E) had both equaled 48, you could have made a = 3 and b = 4,
discovered that the total was 90, and then plugged 3 and 4 into only choices (B) and (E) to determine which one equaled 90.
BE WARY OF 0 AND 1
Although 0 and 1 are small, easy numbers, picking them increases the chance that more than one answer choice will yield the
same value.