P5 June 2009 Qs 4Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA APM Exams › P5 June 2009 Qs 4This topic has 1 reply, 2 voices, and was last updated 9 years ago by Ken Garrett.Viewing 2 posts - 1 through 2 (of 2 total)AuthorPosts October 18, 2015 at 2:20 pm #277006 peter1009MemberTopics: 8Replies: 4☆HiWhere does the figures/formula for TR and MR come from? I understand that Po = 400 + (0.25×1,440) = $760 and therefore Px = 760 – 0.25XTR = 760X – 0.25X squared (why?) MR = 760 – 0.5X (why?) MC = 200 (2 persons x $100)Thanks October 18, 2015 at 5:29 pm #277022 Ken GarrettKeymasterTopics: 10Replies: 10575☆☆☆☆☆Po = 760 – 0.25 XRevenue = Price x Quantity = Po X = 760X = 0.25 X^2The mathematical way to get from Revenue to Marginal revenue requires you to differentiate this function to give Mr = dR/DX.HOwever, you would not have been required to carry out that step. Instead a formula would have been provided in the exam something like:If revenue, R = aQ – bQ^2 MArginal revenue = MR = a – 2bQAuthorPostsViewing 2 posts - 1 through 2 (of 2 total)You must be logged in to reply to this topic.Log In Username: Password: Keep me signed in Log In