Kailash remembers that his brother Deepak's birthday falls after 20th May but before 28th May, while Geeta remembers that Deepak's birthday falls before 22nd May but after 12th May. On what date does Deepak's birthday fall?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 21st May
Both Kailash and Geeta are right, so the birthday must lie in both ranges at once. “After” and “before” leave out the dates named.
Kailash: after 20 May and before 28 May, so 21 to 27 May
Geeta: after 12 May and before 22 May, so 13 to 21 May
The only date in both ranges is 21 May