r to the power of ?Forums › Ask ACCA Tutor Forums › Ask the Tutor ACCA PM Exams › r to the power of ?This topic has 1 reply, 2 voices, and was last updated 7 years ago by John Moffat.Viewing 2 posts - 1 through 2 (of 2 total)AuthorPosts February 20, 2018 at 2:53 pm #438133 chrisi04MemberTopics: 49Replies: 23☆☆The times taken to produce each of the first 4 batches of a new product were as follows:batch number time taken 1 100mins 2 70mins 3 59mins 4 55minsWHAT WAS THE RATE OF LEARNING CLOSEST TO? (1 d.p)The ANSWER is 84.3%I cannot understand how in his workings he did r to the power of 2. In my opinion it is r to the power of 3.Please help. February 21, 2018 at 10:17 am #438199 John MoffatKeymasterTopics: 57Replies: 54705☆☆☆☆☆To make 4 units, we need to double twice.1 doubles to 2, 2 doubles to 4 – so doubling twice. Therefore it is r to the power 2.Again, please watch my free lectures on this.AuthorPostsViewing 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