Answer this question:A competition has racers competing on bicycles and tricycles to win a grand prize of $4000. If there are 40 people in the race, and 3/5 of them are riding on bicycles, how many wheels do the bicycles and tricycles in the race have combined?
If 3 / 5 of the people in the race are riding bicycles, their number is 3 / 5 * 40 people = 24 people. Since a bicycle has 2 wheels, and 24 people were riding on a bicycle each, the total number of bicycle wheels in the race is 2 wheels / bike * 24 bikes = 48 wheels. The number of racers on tricycles is 40 people - 24 people = 16 people. Since a tricycle has 3 wheels, and 16 people were riding on a tricycle each, the total number of tricycle wheels in the race is 3 wheels / trike * 16 trikes = 48 wheels. The combined total for bicycle and tricycle wheels in the race is 48 wheels + 48 wheels = 96 wheels.
The answer is 96.

Answer this question:Buoys are placed in the ocean at even intervals away from the beach to help swimmers monitor how far away from the beach they have swum. If a swimmer reaches the third buoy, they have swum out 72 meters. How many meters from the beach is the fourth buoy?
The buoys are evenly spaced, so the first buoy is 72 / 3 = 24 meters from the beach. Thus, the fourth buoy is 24 * 4 = 96 meters from the beach.
The answer is 96.

Answer this question:Dave weighs 175 pounds and can bench press three times his body weight. Craig can only bench press 20% of the amount Dave can. Mark is new and can bench press 50 pounds less than Craig. How much can Mark bench press?
Dave weighs 175 pounds and can bench press three times his body weight, so he can bench press 175 * 3 = 525 pounds. Craig can only bench press 20% of Dave's 525 pounds, so Craig can bench press .20 * 525 = 105 pounds. Craig bench presses 105 pounds and Mark does 50 pounds less than Craig, so Mark can only press 105 - 50 = 55 pounds.
The answer is 55.

Answer this question:A school principal is booking hotel rooms for a class of 30 students to stay at during an overnight field trip. Each of the hotel's rooms has two queen size beds, which can fit two students each, and a pull-out couch, which can fit one student. How many rooms does the principal need to book to fit all of the students in the class?
Each room can fit 2 * 2 + 1 = 5 students. Thus, the principal needs to book 30 / 5 = 6 rooms to fit everyone.
The answer is 6.