Question

Sometimes, if Greg is short on time, he has someone drive him to work to save time. The ratio of his travel times when walking compared to riding his bike is proportional to his times when riding his bike compared to driving. Calculate the amount of time in minutes that it takes him when driving. Write the answer (number ONLY) in the box given below.

a) 20
b) 35
c) 40
d) 25

Answer 1

To solve the problem, set up a proportion using the given information and solve for the unknown travel time when driving.

Step-by-step explanation:

To solve this problem, we need to set up a proportion using the given information. Let's assume Greg's travel time when walking is represented by x minutes, his travel time when riding his bike is represented by y minutes, and his travel time when driving is represented by z minutes. We can set up the proportion:

x : y = y : z

Since the ratio of Greg's travel times is proportional, we can write the equation:

x/y = y/z

Now, we can solve for z by cross-multiplying and simplifying the equation:

x*z = y*y

z = (y*y)/x

Since the problem does not provide specific values for x and y, we cannot determine the exact value of z. Therefore, we cannot provide a specific answer to this question.