0580/13 Oct/Nov 2021, Question 15: Mean, Median, Mode and Range
Cambridge IGCSE Mathematics 0580 · Paper 13 (Core) · Calculator · 3 marks
اقرأ هذا الحل مشروحاً بالعربي ←
The question, in short
Sara's mean over 5 tests is 62; after a sixth test her mean becomes 68. Work out the score on the sixth test.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 3 marks
- 1Total of 6 tests = 68 × 6 = 408
- 2Total of 5 tests = 62 × 5 = 310
- 3Sixth test = 408 − 310 = 98
Answer98
Stuck on a step? Read the free lesson: Mean, Median, Mode and Range
Practise more mean, median, mode and range questions
Real 0580 past-paper questions, marked on your working like the exam, with a worked solution for every part.
Practise free on LemmaraMore past-paper questions on mean, median, mode and range
Also searched as: 0580/13/O/N/21 · 0580_w21_qp_13 · 0580 w21 13 · question 15.
Lemmara is an independent study tool, not affiliated with or endorsed by Cambridge International Education. The worked solutions are Lemmara’s own.