Respuesta :

Answer:

lower bound: 315 litres

upper bound: 324 litres

Step-by-step explanation:

The following rules apply:

  • if the last digit of the number is 1, 2, 3, or 4; it is rounded down
  • if the last digit of the number is 5, 6, 7, 8, or 9. ; it is rounded up

So:

314 is  rounded to 310

315 is  rounded to 320

324 is  rounded to 320

325 is  rounded to 330