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19 Jul 2019, 01:51
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C
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Difficulty:
25%
(medium)
Question Stats:
69% (00:52) correct
31%
(00:53)
wrong
based on 49
sessions
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Is x + y equal to 3.6 ?
(1) x ≥ 1.7
(2) y > 1.9
(1) x ≥ 1.7
(2) y > 1.9
Pure algebraic questions like this one are no longer part of the GMAT Data Sufficiency syllabus.
For relevant Data Sufficiency questions, please check the Data Sufficiency forum:
Data Sufficiency Forum
Data Sufficiency Forum
19 Jul 2019, 02:11
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Is x + y equal to 3.6 ?
Statement1: x ≥ 1.7
No any info about 'y'. Also, x could be:
x>3.6
x=3.6 or
1.7 ≤x< 3.6
Insufficient.
Statement2: y > 1.9
No any info about 'x'. Also, y could be:
y>3.6
y=3.6
1.9 <y< 3.6
Insufficient.
Taken together 1 and 2,
--->x+y cannot be equal 3.6.
--->x+y is always greater than 3.6 (the answer is always NO)
(Because,
---> the minimum value of x is 1.7 --> 3.6-1.7=1.9.
y>1.9 ---> y is always greater than 1.9. y≠1.9)
Sufficient. C
Statement1: x ≥ 1.7
No any info about 'y'. Also, x could be:
x>3.6
x=3.6 or
1.7 ≤x< 3.6
Insufficient.
Statement2: y > 1.9
No any info about 'x'. Also, y could be:
y>3.6
y=3.6
1.9 <y< 3.6
Insufficient.
Taken together 1 and 2,
--->x+y cannot be equal 3.6.
--->x+y is always greater than 3.6 (the answer is always NO)
(Because,
---> the minimum value of x is 1.7 --> 3.6-1.7=1.9.
y>1.9 ---> y is always greater than 1.9. y≠1.9)
Sufficient. C
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19 Jul 2019, 05:34
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Is x + y equal to 3.6 ?
(1) x ≥ 1.7
(2) y > 1.9
Both the stmt are individually insufficient.
Min value of x is 1.7 and min value of y could be 1.91 or 1.901 (anything greater than 1.9)
So 1.7 plus 1.91 gives 3.61 gives a decisive answer
So C
Posted from my mobile device
(1) x ≥ 1.7
(2) y > 1.9
Both the stmt are individually insufficient.
Min value of x is 1.7 and min value of y could be 1.91 or 1.901 (anything greater than 1.9)
So 1.7 plus 1.91 gives 3.61 gives a decisive answer
So C
Posted from my mobile device
