Question: Dany owns a farm, in his farm he has 4 cows and 3 sheep that eat 2 bushels a day. He also has 7 chickens that eat 3 bushels a day. How many bushels should he have to suffice the animals for a day?
Answer: Step-by-step reasoning process: Dany has to have 4 x 2 = 8 bushels a day for the cows. He has to have 3 x 2 = 6 bushels a day for the sheep. And he also has to have 7 x 3 = 21 bushels a day for the chickens. Therefore, Dany has to have 8 + 6 + 21 = 35 bushels to suffice the animals for a day.
So the answer is 35.

Question: Jennie drives to her son’s house in 5 hours when there is heavy traffic. When there is no traffic the same trip takes only 4 hours. If her son's house is 200 miles away, what is the difference between her average speed when there is heavy traffic and when there is no traffic?
Answer: Step-by-step reasoning process: Jennie can cover the 200 - mile distance in 5 hours when there is heavy traffic, so her average speed is 200 / 5 = 40mph. She can cover the same distance in 4 hours when there is no traffic for an average speed of 200 / 4 = 50mph. The difference in average speed between the two scenarios is (50 - 40)mph = 10mph.
So the answer is 10.

Question: TreQuan is throwing rocks in the river and he notices that the bigger the rock, the wider the splash. Pebbles make a splash that is a 1/4 meter wide. Rocks make a splash that is 1/2 a meter wide, and boulders create a splash that is 2 meters wide. If he tosses 6 pebbles, 3 rocks, and 2 boulders, what is the total width of the splashes he makes?
Answer: Step-by-step reasoning process: The pebble's total splash width is 1.5 meters because 6 times 1 / 4 equals 1.5. The rock's total splash width is 1.5 meters because 3 times 1 / 2 equals 1.5. The boulder's total splash width is 4 because 2 times 2 equals four. The total splash width for all the rocks is 7 because 1.5 plus 1.5 plus 4 equals 7.
So the answer is 7.

Question: John uses a 75-watt electric fan for 8 hours a day. How much kWh of electric energy does he consume per month (30 days) for using the electric fan?
Answer:
Step-by-step reasoning process: In a day, John uses 75x 8 = 600 watts. So in a month, he uses 600 x 30 = 18 000 watts. Since there are 1000 watts in 1 kilowatt, then John uses 18000 / 1000 = 18.
So the answer is 18.