Answer the following question.
John takes a 10-minute shower every other day for 4 weeks. If his shower uses 2 gallons of water per minute. How much water does he use in those 4 weeks?
Step-by-step reasoning process: There are 4 * 7 = 28 days in those 4 weeks. That means he takes 28 / 2 = 14 showers. So he takes a total of 14 * 10 = 140 minutes of showers. So he uses 2 * 140 = 280 gallons of water.
The answer is 280.

Answer the following question.
Ned opens a left-handed store. He sells left-handed mice. They cost 30% more than normal mice. He sells 25 a day and his store is open every day except Sunday, Thursday, and Friday. If normal mice cost $120 how much money does he make a week?
Step-by-step reasoning process: The left - hand mice cost 120 * .3 = $36 more than right - handed ones. So they cost 120 + 36 = $156. So he makes 156 * 25 = $3900 a day. The store is open 7 - 3 = 4 days a week. So in a week, he makes 3900 * 4 = $15,600.
The answer is 15600.

Answer the following question.
Kira wants some new music on her phone. She downloads 10 songs in the morning. Later on that day, she finds 15 more songs she likes so she downloads them, and at night a friend of hers recommends 3 more songs she also downloads. Knowing that each song has a size of 5 MB, how much memory space in MB will the new songs occupy?
Step-by-step reasoning process: The total number of songs downloaded is 10 songs + 15 songs + 3 songs = 28 songs. The total size of the songs is 28 songs x 5MB / song = 140 MB.
The answer is 140.

Answer the following question.
Barbi lost 1.5 kilograms each month for a year. Luca lost 9 kilograms every year for 11 years. How many more kilograms did Luca lose than Barbi?
Step-by-step reasoning process: Barbi = 1.5 * 12 months = 18 kg. Luca = 9 * 11 = 99 kg. 99 - 18 = 81 kg. Luca lost 81 kg more than Barbi.
The answer is 81.