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?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 145.
| Understanding/Application |
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Total rainfall for town B = 455 Average daily rainfall for 2 days = 105 Total rainfall for 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 Average = Sum of all quantities/Total quantities |
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Total rainfall for town A = 210 + 252 + 98 = 560 Average daily rainfall for town A and B together = (560 + 455)/7 = 1015/7 = 145 |