Mathematics

Mathematics

Problem

The numbers 9.6,8.1,6.6,5.19.6, 8.1, 6.6, 5.1 are claimed to form an arithmetic progression. If the claim is correct, what is their common difference? a) 1.51.5 b) −1.3-1.3 c) −1.5-1.5 d) −1.2-1.2

Browse the problem library