Question: Helen cuts her lawn starting in March and finishes in October. Her lawn mower uses 2 gallons of gas every 4th time she cuts her lawn. For March, April, September and October, she only cuts her law 2 times per month. In May, June, July and August, she has to cut her lawn 4 times per month. How many gallons of gas will she need to cut her lawn from March through October?
Answer: For March, April, September and October, she cuts her lawn 2 a month. There are 4 months so she cuts her yard 2 * 4 = 8 times. For May, June, July and August, she cuts her lawn 4 times a month. There are 4 months so she cuts her yard 4 * 4 = 16 times. During the entire 8 month period, she cuts her lawn 8 + 16 = 24 times. Every 4th time she cuts, she needs 2 gallons of gas. If she cuts her lawn 24 times a year then she needs to fill up 24 / 4 = 6 times. Each time she fills up, it takes 2 gallons of gas so 2 * 6 = 12 gallons of gas per year. The answer is 12.
[Question]Madison and Gigi have to run a total of 2400 meters in gym class. The track is 150 meters around. If they each have run 6 laps, how many more laps do they have to run before they reach 2400 meters?
[Answer]The have run 12 laps because 6 + 6 = 12. They have run 1,800 meters because 12 x 150 = 1,800. They have 600 more meters to run because 2,400 - 1,800 = 600. The have to run 4 more laps because 600 / 150 = 4. The answer is 4.
Q: Greg drives 30 miles from his workplace to the farmer's market. After buying his groceries at the farmers market, he drives home. To get home, he travels for 30 minutes at 20 miles per hour. How many miles in total does Greg travel?
A: We must first convert minutes to hours, so 30 minutes * (1 hour / 60 minutes) = 0.5 hours. The number of miles Greg travels on his trip home is 0.5 hours * 20 mph = 10 miles. The total miles Greg travels is 10 + 30 = 40 miles. The answer is 40.
Question: John's weight bench can support 1000 pounds. He wants to make sure to stay 20% under that weight for safety. If he weighs 250 pounds how much weight can he put on the bar?
Answer: He wants to stay 1000 * .2 = 200 pounds under the max. So he wants to stay under 1000 - 200 = 800 pounds. That means he can put 800 - 250 = 550 pounds on the bar. The answer is 550.
[Question]A road has four intersections. At the first intersection, there are 40 road signs showing different types of information mounted on the street poles. At the second intersection, 1/4 times more road signs than the first intersection are mounted on the street poles. The number of road signs at the third intersection is twice the number at the second intersection. If at the fourth intersection the number of road signs is 20 fewer than those at the third intersection, calculate the total number of road signs at the four intersections.
[Answer]There are 1 / 4 * 40 = 10 more road signs at the second intersection than the first intersection. This means there are 40 + 10 = 50 road signs at the second intersection. The total number of road signs at the first and second intersection is 50 + 40 = 90. The third intersection has twice the number of road signs at the second intersection, meaning there are 2 * 50 = 100 road signs. The total number of road signs at first to the third intersection is 90 + 100 = 190 road signs. At the fourth intersection, the number is 20 fewer than at the third intersection, meaning there are 100 - 20 = 80 road signs. All four road intersections have 190 + 80 = 270 road signs in total. The answer is 270.
[Question]Noah’s age is twice Joe’s age. If Joe is 6 years old, how old will Noah be after 10 years?
[Answer]
Noah’s age is 2 * 6 = 12 years old. After 10 years Noah will be 12 + 10 = 22 years old. The answer is 22.