The table shows the charge for water services provided by the utilities board.
Water consumption |
Rate |
70 m3 of water usage and below |
$1.30 per m3 |
Additional water usage above 70 m3 |
$1.50 per m3 |
Pamela's family paid $100 for water usage in the month of May. What is the most amount of water that they could have used in May?
Amount that Pamela's family paid for the first 70 m
3 of water usage
= 70 x 1.30
= $91
Remaining amount that Pamela's family paid for additional water usage
= 100 - 91
= $9
Additional water usage
that Pamela's family paid for
= 9 ÷ 1.50
= 6 m
3Most amount of water that Pamela's family could have used in May
= 70 + 6
= 76 m
3 Answer(s): 76 m
3