Study the table below:
Meter readings Description of service Amount (N$)
Service Previous Current Usage Electricity usage 1 056,00
Electr. 452548 480 Water consumption 636,00
Water 67832 67885 Basic water 125,00
Basic electricity 115,00
Refuse removal 65
Sewerage 110
Total amount due
2.2 Calculate the tariff for water per unit.
To calculate the tariff for water per unit, divide the amount for water consumption by the usage.
Water tariff per unit = Amount for water consumption / Usage
= 636,00 / 53
= 12,00 N$ per unit
To calculate the tariff for water per unit, we need to determine the usage and the amount charged for that usage.
From the table, the previous water meter reading is 67,832 and the current water meter reading is 67,885. The difference in these readings gives us the water usage.
Water Usage = Current Reading - Previous Reading
Water Usage = 67,885 - 67,832
Water Usage = 53 units
The total amount charged for water consumption is N$636.
Tariff per unit = Total Amount Charged / Water Usage
Tariff per unit = N$636 / 53 units
Tariff per unit = N$12 per unit.
Therefore, the tariff for water per unit is N$12.