Consider the question. A singer is planning on releasing 3 songs in a month. If he worked on one song for 10 hours a day, and each song took 10 days to be completed, calculate the total number of hours he took to complete the 3 songs.
 What is the step-by-step reasoning process to arrive at the answer: 300?
If he worked on a song for 10 hours a day, the total number of hours he takes to complete one song is 10 * 10 = 100 hours. If one song took 100 hours to complete, the total number of hours the three songs took to be completed is 3 * 100 = 300 hours.