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06 May 2019, 01:54
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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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Question Stats:
70% (01:49) correct
30%
(01:39)
wrong
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If a, b, and x are integers greater than zero, then which of the following must be greater than a/(a + b) ?
A. (a + x)/(a + b + x)
B. (a - x)/(a + b + x)
C. 2a/(2a + 2b + x)
D. (a/(a + b))^2
E. (a - 1)/(a + b - 1)
A. (a + x)/(a + b + x)
B. (a - x)/(a + b + x)
C. 2a/(2a + 2b + x)
D. (a/(a + b))^2
E. (a - 1)/(a + b - 1)
06 May 2019, 02:16
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Bunuel
If a, b, and x are integers greater than zero, then which of the following must be greater than a/(a + b) ?
A. (a + x)/(a + b + x)
B. (a - x)/(a + b + x)
C. 2a/(2a + 2b + x)
D. (a/(a + b))^2
E. (a - 1)/(a + b - 1)
A. (a + x)/(a + b + x)
B. (a - x)/(a + b + x)
C. 2a/(2a + 2b + x)
D. (a/(a + b))^2
E. (a - 1)/(a + b - 1)
a, b, x all are positive integers greater than 0.
let assume the values .
a =1
b= 1
x = 1
Given,
a/(a + b)
1 / 2
Option A)
1 + 1 / (1 + 1 + 1)
= 2/3
2/3> 1/2
Thus A is the correct answer.
06 May 2019, 02:34
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IMO :A
Just wondering if there's any other method than putting numbers.
Here the answer was A so it took less time but what if it would have been D, we have to go through all choices which takes more time.
So is there any way to eliminate choices?
Posted from my mobile device
Just wondering if there's any other method than putting numbers.
Here the answer was A so it took less time but what if it would have been D, we have to go through all choices which takes more time.
So is there any way to eliminate choices?
Posted from my mobile device
