Question

In one hour 3/4 pint of a chemical can be filtered how long in HOURS will it take to filter 2 1/2 pints of chemical

Answer 1

2 1/2 divided by 3/4
↓
2 1/2 multiply by 4/3
2 1/2 same as 2*2+1/2 which is 5/2

5/2*3/4= 15/8= 1 7/8

in 1 7/8 hours it will be filled