Here are the answers and walkthrough to Stupid Test Level 4 Question 18 – The sum of the ages of David, Bob and Jim are 34. David is 3 years older than Jim and Bob is 5 years younger than Jim. How old is David?

• Let Jim’s Age Be(A) David’s Age Be (A+3) And Bob’s Age (A-5)Sum Of All Ages Is 34, Thus A+(A+3)+(A-5)-34, Solving For A Jim’s Age Is 12. Bob’s Age Is Therefore 7 And Davids Age Is 15.12+15+7-34

Answer

• 15

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