During an IVF treatment, a technician retrieves 20 oocytes from a patient. If 14 of them are mature (metaphase II), what percentage of the retrieved oocytes were mature?

Step-by-step solution

1. Let the number of mature oocytes be $14$ and the total retrieved oocytes be $20$.
2. The maturation rate is given by $\frac{14}{20}\times 100$.
3. Calculating, $\frac{14}{20}=0.7$.
4. Multiplying by $100$ gives $0.7\times 100=70$.
5. Hence $70$ of the oocytes were mature.

Concept tested: Maturation rate in IVF

Published 24 September 2026 · How this solution was prepared and checked