A tap is dripping constantly at 12 ml per 30 seconds. This continues until detected three hours later and stopped. How much water in liters was wasted in the three hours?



Answer :

To determine the total amount of water wasted by a dripping tap over three hours, follow these steps:

1. Understand the Dripping Rate: The tap drips at a rate of 12 milliliters every 30 seconds.

2. Convert Hours to Seconds: Since the tap drips at a rate based on seconds, we first need to convert the time span from hours to seconds. There are 3600 seconds in an hour, so:
[tex]\[ \text{Total time in seconds} = 3 \text{ hours} \times 3600 \text{ seconds per hour} = 10800 \text{ seconds} \][/tex]

3. Calculate the Number of 30-Second Intervals: Next, determine how many 30-second intervals are in 10800 seconds:
[tex]\[ \text{Number of 30-second intervals} = \frac{10800 \text{ seconds}}{30 \text{ seconds per interval}} = 360 \text{ intervals} \][/tex]

4. Determine the Total Water Wasted in Milliliters: Multiply the number of intervals by the dripping rate per interval:
[tex]\[ \text{Total water wasted in milliliters} = 360 \text{ intervals} \times 12 \text{ milliliters per interval} = 4320 \text{ milliliters} \][/tex]

5. Convert Milliliters to Liters: There are 1000 milliliters in a liter, so convert the total milliliters to liters:
[tex]\[ \text{Total water wasted in liters} = \frac{4320 \text{ milliliters}}{1000} = 4.32 \text{ liters} \][/tex]

Thus, the amount of water wasted in the three hours was 4.32 liters.