Hi Roland2rule,
We're told that John is one year older than three times Linda's age, and the sum of their ages is 33 years. We're asked for John's age in 4 YEARS.
There are a couple of different ways to approach this question - since the answer choices are relatively small, you can actually use some 'brute force' arithmetic and get the correct answer without too much trouble:
IF...
Linda is 1, then John is 4 and the total is 5
Linda is 2, then John is 7 and the total is 9
Linda is 3, then John is 10 and the total is 13
Notice how the total age increases by 4 years each time... getting from a total of 13 years to a total of 33 years shouldn't be too tough (it's just 5 more 'steps'):
Linda is 8, then John is 25 and the total is 33
Thus, in 4 years, John will be 25+4 = 29
Final Answer: C
GMAT assassins aren't born, they're made,
Rich
