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GRE Prep Club Team Member
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The average (arithmetic mean) selling price of 5 houses in a certain n
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08 May 2022, 08:32
08 May 2022, 08:32
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The average (arithmetic mean) selling price of 5 houses in a certain neighborhood was $250,000. If the average selling price of 3 of the houses was $280,000, what was the average selling price of the other 2 houses?
A. $205,000
B. $215,000
C. $220,000
D. $240,000
E. $250,000
A. $205,000
B. $215,000
C. $220,000
D. $240,000
E. $250,000
Re: The average (arithmetic mean) selling price of 5 houses in a certain n
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08 May 2022, 11:28
08 May 2022, 11:28
Total Price of 5 houses = 250 * 5 = 1250
Total Price of 3 houses = 280 *3 = 840
Total price of rest of 2 houses = 1250 - 840 = 410
Avg price of rest of 2 houses = 410/2 = 205k
Hence option A is correct ans
Total Price of 3 houses = 280 *3 = 840
Total price of rest of 2 houses = 1250 - 840 = 410
Avg price of rest of 2 houses = 410/2 = 205k
Hence option A is correct ans
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The average (arithmetic mean) selling price of 5 houses in a certain n
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31 Jul 2022, 22:54
31 Jul 2022, 22:54
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Theory
The average (arithmetic mean) selling price of 5 houses in a certain neighborhood was $250,000
Sum of price of 5 houses = Average * 5 = $250,000 * 5 = $1,250,000
The average selling price of 3 of the houses was $280,000
Sum of price of 3 houses = Average * 3 = $280,000 * 3 = $840,000
The average selling price of remaining 2 houses
Average = Sum of all the Values / 2 = Sum of price of 5 houses - Sum of price of 3 houses/2 = \(\frac{$1,250,000 - $840,000 }{ 2}\)
= \(\frac{$410,000}{2}\) = $205,000
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
- ➡ Average = Sum of all the Values / Total Number of Values
➡ Sum of All the values = Average * Total Number of Values
The average (arithmetic mean) selling price of 5 houses in a certain neighborhood was $250,000
Sum of price of 5 houses = Average * 5 = $250,000 * 5 = $1,250,000
The average selling price of 3 of the houses was $280,000
Sum of price of 3 houses = Average * 3 = $280,000 * 3 = $840,000
The average selling price of remaining 2 houses
Average = Sum of all the Values / 2 = Sum of price of 5 houses - Sum of price of 3 houses/2 = \(\frac{$1,250,000 - $840,000 }{ 2}\)
= \(\frac{$410,000}{2}\) = $205,000
So, Answer will be A.
Hope it helps!
Watch the following video to Learn the Basics of Statistics
