Question

on average, it takes you 15 minutes to pack one box at the warehouse where you work. at this rate, about how many hours will it take you to pack 10 boxes?
a. $1\frac{1}{2}$

b. $2\frac{1}{2}$

c. $10\frac{1}{4}$

d. 25

e. 40

Explanation:

Step1: Convert minutes to hours

Since 1 hour = 60 minutes, 15 minutes is $\frac{15}{60}=\frac{1}{4}$ hours per box.

Step2: Calculate time for 10 boxes

To find the time for 10 boxes, multiply the time per box by the number of boxes: $10\times\frac{1}{4}=\frac{10}{4}=2\frac{1}{2}$ hours? Wait, no, wait. Wait, the question is "how many hours will it take you to pack 10 boxes?" Wait, no, wait the original problem: "On average, it takes you 15 minutes to pack one box... At this rate, about how many hours will it take you to pack 10 boxes?" Wait, 15 minutes per box, 10 boxes: 15*10 = 150 minutes. Convert to hours: 150/60 = 2.5 hours, which is $2\frac{1}{2}$ hours. Wait, but the options: A is $1\frac{1}{2}$, B is $2\frac{1}{2}$, C is $10\frac{1}{4}$, D is 25, E is 40. So the correct answer should be B? Wait, let's recheck.

Wait, 15 minutes per box. 10 boxes: 15*10 = 150 minutes. 150 minutes divided by 60 minutes per hour: 150/60 = 2.5 = $2\frac{1}{2}$ hours. So the correct option is B.

Answer:

B. $2\frac{1}{2}$