[Question]Three planes are going to the same place but each has a different number of passengers. The first plane has 50, the second had 60, and the third has 40. An empty plane can go 600 MPH, but each passenger makes it go 2 MPH slower. What is their average speed?
[Answer]The first plane goes 100 MPH slower than empty because 50 x 2 = 100. The first plane goes 500 MPH because 600 - 100 = 500. The second plane goes 120 MPH slower because 60 x 2 = 120. The second plane goes 480 because 600 - 120 = 480. The third plane goes 80 MPH slower because 40 x 2 = 80. The third plane goes 520 MPH because 600 - 80 = 520. The total speed is 1500 because 500 + 480 + 520 = 1500. Their average speed is 500 because 1500 / 3 = 500. The answer is 500.
Q: As Dan is learning to screen-print t-shirts to sell at the craft fair, he makes t-shirts, over the first hour, at the rate of one every 12 minutes. Then, in the second hour, he makes one at the rate of every 6 minutes. How many t-shirts does he make over the course of those two hours?
A: He made 60 / 12 = 5 the first hour. He made 60 / 6 = 10 the second hour. He made 5 + 10 = 15. The answer is 15.
Question: Miriam takes care of the flowers in the botanical garden. She works 5 hours a day and can take care of 60 different flowers in one day. How many flowers can Miriam take care of in 6 days of work?
Answer: Miriam works 5 hours per day, so in 6 days, she works 5 * 6 = 30 hours. Miriam can take care of 60 / 5 = 12 flowers per hour. In 6 days of work, Miriam can take care of 30 * 12 = 360 flowers. The answer is 360.
[Question]Elvis and Ralph are to make square shapes with matchsticks from a box containing 50 matchsticks. Elvis makes 4-matchstick squares and Ralph makes 8-matchstick squares. If Elvis makes 5 squares and Ralph makes 3, how many matchsticks will be left in the box?
[Answer]Elvis makes 5 squares with 4 matchsticks each for a total of 5 * 4 = 20 matchsticks. Ralph makes 3 squares with 8 matchsticks each for a total of 8 * 3 = 24 matchsticks. They used a total of 20 + 24 = 44 matchsticks. There will be 50 - 44 = 6 matchsticks left in the box. The answer is 6.
Q: Dorchester works at a puppy wash. He is paid $40 per day + $2.25 for each puppy he washes. On Wednesday, Dorchester earned $76. How many puppies did he wash that day?
A: First find out how much he earned just from puppy washing: $76 - $40 = $36 for puppy washing. Now divide this amount by the payment per puppy: $36 / $2.25 per puppy = 16 puppies. The answer is 16.
Question: Katrina saw an ad that said if she signed up for her local recycling program, she could earn $5.00. When she signed up, they told her for every friend that she referred, the friend would receive $5.00 and she would receive another $5.00 per friend. That day, she had 5 friends sign up and another 7 friends by the end of the week. How much money in total did she and her friends make?
Answer:
She signed up 5 friends, then an additional 7 for a total of 5 + 7 = 12 friends. Each friend received $5 so 12 * 5 = $60.00. And she received $5 for each friend so 12 * 5 = $60.00. Her initial reward was $5 and her friends made $60 for signing up and she received $60 when they signed up for a total of 5 + 60 + 60 = $125.00. The answer is 125.