Tanzanian „Mock“ National Exam Maths Question
Dienstag, 17. Mai 2011 14:55
I had a delightful time helping the Form 4 (last year of secondary school, before the A-levels) students with questions from their „Mock“ National Exam in Mathematics, which will soon decide about whether they can go on to the A-levels. One of these questions surprised me with the amount of creative thinking it involved. That is, I am wondering if there is a standard way to solve this that I overlooked. So here it is, any inputs are welcome (train your brain!):
In a geometric progression, the sum of the second and third term is 6, and the sum of the third and fourth term is –12. Find the first term and common ratio of the progression.
I will post my solution after some comments come in, or I get bored waiting 
Thema: English, Weltreise 2011 | Kommentare (3) | Autor: Christoph