Problema Solution
Monica spent 4/7 hours listening to tapes of Beethoven and Brahms. She spent 1/3 hours listening to Beethoven. How many hours were spent listening to Brahms?
Answer provided by our tutors
= 4/7 - 1/3(4/7)
= 4/7 - 4/21
= 12-4 / 21 ==> 8/21