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Question 75
The average daily rainfall of town A is 105 for first 2 days of the week, 84 for next 3 days and 49 for the last 2 days of the week. The total weekly rainfall for town B is 455. What will be the average daily rainfall of both the towns together?
Solution
Average daily rainfall for 2 days = 105
Total rainfall for 2 days = 210
Average daily rainfall for 3 days = 84
Total rainfall for 3 days = 252
Average daily rainfall for 2 days = 49
Total rainfall for 2 days = 98
Total rainfall for Town A = 210+252+98 = 560
Total rainfall for Town B = 455
Average daily rainfall for Town A and B together = $$\dfrac{560+455}{7} = \dfrac{1015}{7} = 145$$
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