Maths was never my forte at all, and I have just driven myself to the brink to work out how to formulate this calculation, and hope someone can help
The quandry is what will the next delivery date be, based on the following information
18kva Generator, on a qtr load, uses 24 litres a day (1ltr per hour), the fuel tank is 2000ltrs, and it runs 40hrs over a 5 day week (8hrs a day) the last delivery date was 1st February
100kva Generator, on a qtr load, uses 120 litres a day (5ltr per hour), the fuel tank is 2000 litres, and it runs 24/7, the last delivery date being 1st February
What will based on the above useage, the next delivery date be?