The distance Andy must travel is 1407 km. the spreadsheet shows how the amount of hours-(the independent variable) links to time (the dependent variable) Calorie consumption is also included.
However, we must look at the second sheet before we can draw any conclusions. This shows the effectiveness of each snack, price and weight-(or correctly mass, as we are measuring in grams) compared to calorie intake. In other words, which provides the most calories and is the lightest, or which provides the most calories, and it the cheapest. These factors are both taken into account for the overall effectiveness.
To start with, we will, being a very supportive coach, discount cost and just focus on Calories and weight. For this, the cheap cereal bar is best, and also, incidentally, second cheapest, so it seems like a good option.
The energy drink can already provide 380 (190*2 because the bottles are 1l) per bottle, and Andy can hold 3 on his bike-1140 Kcal. After he has drunk this (which will take around 6 hours), he can stop to fill up with water.
As you can see from the spreadsheet, 15 energy bars are needed for 12 hours a day.
(For reference, any row with further hours can be viewed. Using energy gel, Andy could cycle for longer per day, but 12 hours is, in my opinion, the longest he can realistically cycle for per day anyway. Including breaks and meals, there would not be time for any more, especially in non-daylight saving time.)
These cereal bars reaches a total mass of 375 g, and a cost of £2.40 per day.
The energy drink reaches a total volume of 3000 ml, and a cost of £8.34 per day.
So, in summary, he can complete the race in 5.2 days if he cycles for 12 hours a day. He will have three really big meals, carry 3 energy drinks and 15 cereal bars per day. (ON the fifth day, he will be cycling for 2 hours and 24 minutes, and so need 1.25l of energy drink- 2 bottles, one a quarter full to reduce mass. He will not need anything else, as extra calories can be consumed after the event. )
Energy bars will cost £12.00 for the entire event, and energy drink £45.87* . Money for other costs cannot be calculated for lack of information. So the total cost for all known items is £57.87.
* For the last day, 1.5l must be bought.