The table shows the charge for water services provided by the utilities board.
Water consumption |
Rate |
60 m3 of water usage and below |
$1.30 per m3 |
Additional water usage above 60 m3 |
$1.80 per m3 |
Fanny's family paid $87 for water usage in the month of April. What is the most amount of water that they could have used in April?
Amount that Fanny's family paid for the first 60 m
3 of water usage
= 60 x 1.30
= $78
Remaining amount that Fanny's family paid for additional water usage
= 87 - 78
= $9
Additional water usage
that Fanny's family paid for
= 9 ÷ 1.80
= 5 m
3Most amount of water that Fanny's family could have used in April
= 60 + 5
= 65 m
3 Answer(s): 65 m
3