Find the arithmetic mean or average of the following data. (i) The study time spent by Kathir in a week is 3 hrs, 4 hrs, 5 hrs, 3 hrs, 4 hrs, 3:45 hrs, 4:15 hrs. (ii) The marks scored by Muhil in five subjects are 75, 91, 48, 63, 51. (iii) Money spent on vegetables for five days is Rs. 120, Rs. 80, Rs 75, Rs. 95 and Rs. 86.

Find the arithmetic mean or average of the following data. (i) The study time spent by Kathir in a week is 3 hrs, 4 hrs, 5 hrs, 3 hrs, 4 hrs, 3:45 hrs, 4:15 hrs. (ii) The marks scored by Muhil in five subjects are 75, 91, 48, 63, 51. (iii) Money spent on vegetables for five days is Rs. 120, Rs. 80, Rs 75, Rs. 95 and Rs. 86.

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