Question: Mike changes tires on different vehicles. He changes all the tires on 12 motorcycles and all the tires on 10 cars. How many tires did he change?
Answer: He changed 12 * 2 = 24 motorcycle tires. He changed 10 * 4 = 40 car tires. So he changed 24 + 40 = 64 total tires. The answer is 64.
[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: The city of Richmond has 1000 more people than Victoria. Victoria has 4 times as many people as Beacon. If Richmond has 3000 people, how many people are there in Beacon?
A: Victoria has 3000 - 1000 = 2000 people. Beacon has 2000 / 4 = 500 people. The answer is 500.
Question: The three angles of a triangle add up to 180 degrees. The largest angle is 5 times bigger than the smallest. The middle angle is 3 times bigger than the smallest. How many degrees is the smallest angle?
Answer: Let x be the smallest angle. The combination of the three is x + 3x + 5x = 9x. Thus 9x = 180. So x = 20. The answer is 20.
[Question]Jen and Tyler are gymnasts practicing flips. Jen is practicing the triple-flip while Tyler is practicing the double-flip. Jen did sixteen triple-flips during practice. Tyler flipped in the air half the number of times Jen did. How many double-flips did Tyler do?
[Answer]Jen did 16 triple - flips, so she did 16 * 3 = 48 flips. Tyler did half the number of flips, so he did 48 / 2 = 24 flips. A double flip has two flips, so Tyler did 24 / 2 = 12 double - flips. The answer is 12.
[Question]Daniel owns a textile company. Every Monday he delivers 20 yards of fabric, and every Tuesday he delivers twice the amount of fabric he delivers on Monday. Every Wednesday, he delivers 1/4 of the amount of fabric he delivers on Tuesday. If each yard of fabric costs $2 and each yard of yarn costs $3, how much does he earn from Monday to Wednesday?
[Answer]
Every Tuesday, Daniel delivers 20 x 2 = 40 yards of fabric. Every Wednesday, he delivers 40 x 1 / 4 = 10 yards of fabric. Thus, he delivers a total of 20 + 40 + 10 = 70 yards of fabric from Monday to Wednesday. Therefore, Daniel earns $2 x 70 = $140 from it. The answer is 140.