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02 Jan 2014, 06:37
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
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94% (00:52) correct
6%
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In the figure above, the sum of the three numbers in the horizontal row equals the product of the three numbers in the vertical column. What is the value of xy ?
(A) 6
(B) 15
(C) 35
(D) 75
(E) 90
Attachment:
Untitled.png [ 7.67 KiB | Viewed 21147 times ]
02 Jan 2014, 06:37
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SOLUTION
In the figure above, the sum of the three numbers in the horizontal row equals the product of the three numbers in the vertical column . What is the value of xy ?
(A) 6
(B) 15
(C) 35
(D) 75
(E) 90
37 + 38 + 15 = 15xy --> 90 = 15xy --> xy=6.
Answer: A.
In the figure above, the sum of the three numbers in the horizontal row equals the product of the three numbers in the vertical column . What is the value of xy ?
(A) 6
(B) 15
(C) 35
(D) 75
(E) 90
37 + 38 + 15 = 15xy --> 90 = 15xy --> xy=6.
Answer: A.
02 Jan 2014, 07:07
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Very Easy Question --
Sum of elements in a horizontal row == 90
In verticle column one element is 15.
Multiply of 15 * x * y = 90
xy = 6..
So Option A is the answer.
Sum of elements in a horizontal row == 90
In verticle column one element is 15.
Multiply of 15 * x * y = 90
xy = 6..
So Option A is the answer.
