There are approximately 13 weeks in 3 months. This is based on the general average that one month has about 4.33 weeks (since 1 year = 52 weeks, and 1 year = 12 months, so 5212≈4.33\frac{52}{12}\approx 4.331252≈4.33). Calculation:
3 months×4.33 weeks/month≈13 weeks3\text{ months}\times 4.33\text{ weeks/month}\approx 13\text{ weeks}3 months×4.33 weeks/month≈13 weeks
