In this question you must show all stages of your working. Solutions relying entirely on calculator technology are not acceptable.
A fleet of autonomous delivery drones logs its flight hours each week. The number of flight hours logged in a given week follows an arithmetic progression.
Find the number of flight hours logged in the first week, aaa, and the constant weekly increase in flight hours, ddd.
Determine the smallest number of weeks, nnn, required for the cumulative flight time to exceed 1.5 million hours.
Practise Edexcel A Level Maths 3.2 Arithmetic Series with exam-style questions for A Level Maths. 38 questions, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.