Waec Model Questions Vol1 2023 Biology Question 20
Practice objective / multiple choice question 20 from the 2023 Waec Model Questions Vol1 Biology examination.
A woman has a regular 28‑day menstrual cycle. Ovulation occurs 14 days after the first day of menstruation. Sperm can survive up to 5 days in the female tract, and an ovum remains viable for 24 h after ovulation. If she has sexual intercourse on day 10 of her cycle, what is the probability (as a percentage) that fertilisation will occur, assuming fertilisation is equally likely on any day when sperm and ovum are simultaneously viable?
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About This Question
This is Waec Model Questions Vol1 2023 Biology Question 20. It is one of the objective questions from the 2023 Waec Model Questions Vol1 Biology examination.
Difficulty level: Medium .
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