The Western Cape water crisis began in 2015 resulting in a severe water shortage in Cape Town - NSC Mathematical Literacy - Question 1 - 2019 - Paper 2

To verify the calculation for July:

1. The total number of days in July is 31.

   Calculating maximum litres for July:

   $\text{Maximum litres for July} = \text{litres per day} \times \text{number of days}$

   $750 \times 31 = 23,250$

   This confirms that if they used 1,500 litres per day for 31 days:

   $1,500 \times 31 = 46,500$

   The statement is therefore NOT valid as the values differ significantly.

Since Mr. and Mrs. Vellem have six occupants:

• For one occupant over four:

  $1 ext{ occupant} \rightarrow 5\% \text{ increase}$

• Thus, the maximum litres per day for the Vellem household would be:

  $\text{New maximum litres per day} = 750 + \left(0.05 \times 750\right) = 787.5 ext{ litres}$

Therefore, the Vellem household is entitled to adjust their water usage accordingly.