The moisture content of sewage sludge of two samples was reduced as follows:
Sample A: 97% to 95%.
Sample B: 98% to 96%
Select the correct inference.
1
The decrease in volume for samples A and B is the same = 50%
2
The decrease in volume for Samples A and B is the same = 60%
3
There is an increase in volume of 60% for Sample A and 50% for Sample B
4
There is a decrease in volume of 60% for Sample A and 50% for Sample B