Question: Lydia has 80 plants. 40% of her plants are flowering plants. Lydia wants to place a fourth of her flowering plants on the porch. If each flowering plant produces 5 flowers, how many flowers are there in total on the porch?
Answer: Lydia has 80 * 0.40 = 32 flowering plants. Lydia places 32 / 4 = 8 of the flowering plants on the porch. There are 8 * 5 = 40 flowers on the porch. The answer is 40.

Question: Malcolm brushes his teeth for 2 minutes after breakfast, lunch and dinner. After 30 days, how many hours does he spend brushing his teeth?
Answer: He brushes his teeth 3 times a day, after breakfast, lunch and dinner. He brushes for 2 minutes so that’s 3 * 2 = 6 minutes per day. He brushes 6 minutes per day so after 30 days he has brushed 6 * 30 = 180 minutes. There are 60 minutes in 1 hour and he brushes for 180 minutes so that’s 180 / 60 = 3 hours. The answer is 3.

Question: Mike has earned a total of $160 in wages this week. He received the wages for his first job, then later received the wages from his second job where he works 12 hours a week. If his second job pays $9 per hour then how much money, in dollars, did Mike receive from his first job?
Answer: From his second job, Mike receives $9 / hour * 12 hours = $108. He therefore earned $160 – $108 = $52 from his first job. The answer is 52.

Question: If Ken's house is twice as far from Dawn's house as Mary's house along a certain road, and Ken's house is 4 miles away from Dawn's house along this same road, how much distance (in miles) will Ken cover if he goes from his house to Dawn's house, then Mary's, then back to Dawn's before going back to his own house?
Answer:
Ken's house is twice as far from Dawn's house as Mary's, so the distance between Ken's and Mary's is half that between Ken's and Dawn's (4 miles) which means the former is (1 / 2) * 4 miles = 2 miles. If Ken goes from his house to Dawn's, he has covered 4 miles. He goes from there to Mary's (2 miles, same as Ken's to Mary's) for a total of 4 + 2 = 6 miles. He goes back to Dawn's (another 2 miles) for a total of 6 + 2 = 8 miles. Then he goes to his own house (4 miles) for a final total of 8 + 4 = 12 miles. The answer is 12.