Question

water flowing in a river is measured to have an average flow rate of 3 cubic meters per hour. conversions 1 cubic meter = 1000 liters 1 hour = 60 minutes what is the flow rate of the river in liters per minute? a. 0.18 liters per minute b. 1.8 liters per minute c. 5 liters per minute d. 50 liters per minute

Explanation:

Step1: Convert cubic meters to liters

The flow rate is 3 cubic meters per hour. Since 1 cubic meter = 1000 liters, we multiply 3 by 1000: $3 \times 1000 = 3000$ liters per hour.

Step2: Convert hours to minutes

We know 1 hour = 60 minutes. To find the flow rate in liters per minute, we divide the liters per hour by 60: $\frac{3000}{60} = 50$ liters per minute? Wait, no, wait. Wait, the options don't have 50 as correct? Wait, no, wait the original problem: Wait, maybe I misread. Wait, the average flow rate is 3 cubic meters per hour? Wait, no, maybe the original problem was 0.18 cubic meters per hour? Wait, no, the image says "average flow rate of 3 cubic meters per hour"? Wait, no, the options: A. 0.18, B. 1.8, C.5, D.50. Wait, maybe I made a mistake. Wait, let's recheck.

Wait, maybe the flow rate is 0.18 cubic meters per hour? No, the problem says "average flow rate of 3 cubic meters per hour"? Wait, no, the image: "Water flowing in a river is measured to have an average flow rate of 3 cubic meters per hour." Then conversions: 1 cubic meter = 1000 liters, 1 hour = 60 minutes.

So step1: 3 cubic meters per hour = 3 * 1000 liters per hour = 3000 liters per hour.

Step2: Convert to liters per minute: 3000 liters / 60 minutes = 50 liters per minute. But option D is 50 liters per minute. But wait, maybe the flow rate is 0.18 cubic meters per hour? No, the problem says 3. Wait, maybe the original problem was 0.18? Wait, no, the options: A. 0.18, B.1.8, C.5, D.50. Wait, maybe I misread the flow rate. Wait, the image: "average flow rate of 3 cubic meters per hour"? No, maybe it's 0.18? Wait, no, let's check the options. If the flow rate is 0.18 cubic meters per hour: 0.18 1000 = 180 liters per hour. 180 / 60 = 3 liters per minute. No. Wait, if it's 0.018 cubic meters per hour? No. Wait, maybe the flow rate is 0.18 cubic meters per minute? No. Wait, maybe the problem is 0.18 cubic meters per hour? No, the options: A is 0.18 liters per minute. Wait, maybe the flow rate is 0.18 cubic meters per hour. Let's recalculate: 0.18 cubic meters per hour. 0.18 1000 = 180 liters per hour. 180 / 60 = 3 liters per minute. No. Wait, maybe the flow rate is 0.018 cubic meters per hour? No. Wait, maybe I made a mistake. Wait, the options: A. 0.18, B.1.8, C.5, D.50. Let's check option D: 50 liters per minute. 50 liters per minute * 60 minutes = 3000 liters per hour. 3000 liters per hour / 1000 liters per cubic meter = 3 cubic meters per hour. So that matches. So the flow rate is 3 cubic meters per hour, which converts to 50 liters per minute. So the answer is D.

Answer:

D. 50 liters per minute