Hey ttgtl.

The first step for these kind of problems is to translate the information to probabilities. Given what you have stated, you have P(Social Security in 20) = 0.51 and P(Age > 40 AND Secure in 20) = 0.6 with P(Age < 40) = 0.52

Hint: Use these along with the conditional probability formula P(A|B) = P(A and B)/P(B) along with P(not A) = 1 - P(A).