Question

By the age of 21, the best violinists and pianists will have practiced at least 10,000 hours. If you practice an instrument 45 minutes, 0.75 hour, a day for 365.25 days, the length of a year, how many hours will you have practiced?

Answer 1

Explanation:

if you practice an instrument for 45 minutes or 0.75 hrs per day

The violinist's Age is 21 years

The total number of hours practiced per year is 0.75 hours /day * 365days/year

If you want to reach 10,000 hours by the age of 21, you would need to practice for approximately:

10000 hours / 21 years = 476 hours per year

So, you would need to practice for approximately 476 hours/year for 21 years to reach 10,000 hours of practice.