A water tank holds 560 litres after its capacity was reduced by 30%. What was the capacity before the reduction? Enter the number of litres.
Richtige Antwort
800
Erklärung
A 30% reduction leaves 70% of the earlier capacity, so 560 / 0.70 = 800. Adding 30% of 560 gives 728, but that treats the smaller final capacity as the percentage base.