Question 9
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A alone takes 8 days more than A and B together, and B alone takes 18 days more than A and B together. How long do A and B take together?
- A 13 days
- B 10 days
- C 12 days Correct
- D 26 days
Correct Answer: Option C
Shortcut: together T = √(8 × 18) = 12
Check: A = 20, B = 30 → 20 × 30/50 = 12 ✔
Answer: 12 days
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