Question

A survey was made to find the type of music that a certain group of young people liked in a city.

Adjoining pie chart shows the findings of this survey.
From this pie chart, answer the following:

If a cassette company were to make 1,000 CDs, how many of each type would they make?

Answer 1

CD’s of classical music is $10\%$ of $1,000$ which equals $\frac{10\times 1,000}{100}=100$ CD's

CD’s of semi-classical music is $20\%$ of $1,000$ which equals $\frac{20\times 1,000}{100}=200$ CD's

CD’s of light music is $40\%$ of $1,000$ which equals $\frac{40\times 1,000}{100}=400$ CD's

CD’s of folk music is $30\%$ of $1,000$ which equals $\frac{30\times 1,000}{100}=300$ CD's