Answer:
40 CDs are by solo artists and 16 of the CDs are by female solo artists
Explanation:
According to the question, Joshar has a collection of 1200 music CDs. He considers 1/6 of his collection rock music. Of the rock music CDs, 20% are by solo artists. Of the solo artists 2/5 are by female artists.
We are now asked to find many of the CDs are by solo artists and how many of the CDs are by female solo artists?
-----Joshar has 1200 music CD collection,
If 1/6 of his collection is rock music then the amount of rock music CD's with him is
1/6 × 1200
= 200
20% of the rock music CDs are by solo artists ie
20/100 × 200
= 40 CDs are by solo artists
Out of this 40 CD's, 2/5 of them are by female artists ie
2/5 × 40
= 16 are by female artists.