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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?

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? Correct Answer 145

Given :

Total rainfall for Town B = 455

Average daily rainfall for first 2 days = 105

Total rainfall for first 2 days = 210

Average daily rainfall for next 3 days = 84

Total rainfall for next 3 days = 252

Average daily rainfall for last 2 days = 49

Total rainfall for last 2 days = 98

Formula used:

Average = Sum of all quantities/Total number of quantities

Calculations :

⇒ Total rainfall for Town A = 210 + 252 + 98 = 560

⇒ Average daily rainfall for Town A and B together = (560 + 455)/7

⇒ Average daily rainfall for Town A and B together = 1015/7

⇒ Average daily rainfall for Town A and B together = 145

∴ the average daily rainfall of both the towns together is 145.

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