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Ivan recorded the time he took to run 2.4 km from Monday to Saturday. If he takes 11 minutes to run 2.4 km on Sunday, his mean time taken will increase by 12 seconds. (a) Find his mean time taken from Monday to Saturday. 4, 6min Ivan aims to reduce his mean time taken for the week to 9.5 minutes. (b) How fast must Ivan complete his run on Sundav? Give vour answer in minutes and seconds.