Lisa and Robert have taken the same number of photos on their school trip. Lisa has taken 3 times as many photos as Claire and Robert has taken 16 more photos than Claire. How many photos has Claire taken?
Choose the correct choice from the following.
A) 6  B) 8  C) 10  D) 12  E) 14

Rationale: "l = r l = 3 c r = c + 16 3 c = c + 16 c = 8 the answer is b ."
Answer: B