Edexcel D1 2022 June — Question 1

Exam BoardEdexcel
ModuleD1 (Decision Mathematics 1)
Year2022
SessionJune
TopicPermutations & Arrangements
TypeAssignment/allocation matching problems

  1. \(\quad \begin{array} { l l l l l l l l l l } 175 & 135 & 210 & 105 & 100 & 150 & 60 & 20 & 70 & 125 \end{array}\)
The numbers in the list above represent the weights, in kilograms, of ten crates. The crates are to be transported in trucks that can each hold a maximum total crate weight of 300 kg .
  1. Calculate a lower bound for the number of trucks that will be needed to transport the crates.
  2. Using the list provided, carry out a bubble sort to produce a list of the weights in descending order. You need only give the state of the list after each pass.
  3. Use the first-fit decreasing bin packing algorithm to allocate the crates to the trucks.