Question A sequence is defined by , , Where is a positive integer. a) Write down an expression for a in terms of k. b) Show that . c) i. Find in terms of k. ii. Show that is divisible by 10. Solution a) We are given that […]
Question A girl saves money over a period of 200 weeks. She saves 5p in Week 1, 7p in Week 2, 9p in Week 3, and so on until Week 200. Her weekly savings form an arithmetic sequence. a. Find the amount she saves in Week 200. b. Calculate her total savings over the complete 200 […]
Question Ann has some sticks that are all of the same length. She arranges them in squares and has made the following 3 rows of patterns: She notices that 4 sticks are required to make the single square in the first row, 7 sticks to make 2 squares in the second row and in the third row […]