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If the total weight of the pumpkins in a pumpkin patch incre
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22 Jul 2019, 02:47
22 Jul 2019, 02:47
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If the total weight of the pumpkins in a pumpkin patch increases by a factor of 10 while the number of pumpkins decreases by 20%, by what factor does the average weight of a pumpkin in the pumpkin patch increase?
(A) 2
(B) 8
(C) 9.8
(D) 12
(E) 12.5
(A) 2
(B) 8
(C) 9.8
(D) 12
(E) 12.5
Re: If the total weight of the pumpkins in a pumpkin patch incre
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22 Jul 2019, 09:42
22 Jul 2019, 09:42
4
We can calculate the average weight of a group of items using the average formula:
average = total / number
Let's call the original weight of the pumpkins T, and the original number of the pumpkins N. This would look like this:
average weight = T / N
Now we can substitute our new values:
new average weight = 10 T / (1 - .20) N
new average weight = 10 T / .8 N
new average weight = 12.5 T / N
The answer is E.
average = total / number
Let's call the original weight of the pumpkins T, and the original number of the pumpkins N. This would look like this:
average weight = T / N
Now we can substitute our new values:
new average weight = 10 T / (1 - .20) N
new average weight = 10 T / .8 N
new average weight = 12.5 T / N
The answer is E.
Re: If the total weight of the pumpkins in a pumpkin patch incre
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22 Aug 2022, 12:40
22 Aug 2022, 12:40
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