- A25
- B17
- C9
- D24
Step-by-Step Solution
Moving one row down and one column right adds 7 + 1 = 8 days, so the dates are a, with sum , giving . The cells hold 9, 17 and 25, so the lowest is 25. (17 is the middle cell, 51 ÷ 3; 24 adds 7 per step.)
Answer: A) 25