Grandezas

If we increase the speed of a car, the time to cover a fixed distance will decrease. The relationship between speed and time is:

• Directly proportional

• Inversely proportional

• No relation

• Fixed and constant proportion

The more hours an employee works, the higher the salary received (salary per hour). The relationship between hours worked and salary is:

• Inversely proportional

• Proportional to the square

• Directly proportional

• Not proportional

On a trip with a fixed distance, if the average speed is reduced, the travel time will be longer. The relationship between speed and time is:

• Constant

• Direct

• Inverse

• Random

A painter needs 6 days to paint a house. If he hires another painter with the same efficiency, the time to complete the work will be less. The relationship between the number of painters and painting time is:

• Direct

• Inverse

• Equal

• Independent

When doubling the amount of juice in a recipe, we also double the amount of water to keep the taste the same. The relationship between juice and water is:

• Inverse

• Constant

• Random

• Direct

A tap takes 4 hours to fill a water tank. If two taps are used together, the tank will be filled in less time. The relationship between the number of taps and the time is:

• Direct

• Inverse

• Null

• Constant

The fuel consumption of a car increases as the distance traveled increases, keeping speed and conditions the same. The relationship between distance and fuel consumed is:

• Direct

• Inverse

• Random

• Constant

If the number of students in a classroom increases, and the amount of candy distributed is the same, each student will receive less candy. The relationship between the number of students and candy per student is:

• Direct

• Inverse

• Proportional

• Nonexistent

The more people work on a task, the less time it will take to complete it (considering constant efficiency). The relationship between the number of people and execution time is:

• Direct

• Inverse

A builder receives R$ 200 for each square meter built. If he builds more square meters, the amount received increases proportionally. The relationship between the built area and the amount received is:

• Inverse

• Direct

• Constant

• Nonexistent