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r + s + t > 1 and 0 > s + t
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19 Jul 2019, 10:00
19 Jul 2019, 10:00
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Question Stats:
74% (00:52) correct
25% (00:56) wrong based on 154 sessions
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r + s + t > 1 and 0 > s + t
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given
Quantity A |
Quantity B |
1 |
r |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given
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Re: r + s + t > 1 and 0 > s + t
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19 Jul 2019, 10:15
19 Jul 2019, 10:15
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Carcass wrote:
r + s + t > 1 and 0 > s + t
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given
Quantity A |
Quantity B |
1 |
r |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given
------ASIDE-----------------------------------------------------------
There’s a useful inequality property that says “If two inequalities have their inequality symbols facing the same way, we can ADD the inequalities.”
For example, if we know that...
a < b
c < d
...then we can ADD the inequalities to get: a + c < b + d
---------------------------------------------------------------------
GIVEN (I've rearranged the inequalities to create equivalent inequalities):
1 < r + s + t
s + t < 0
ADD the inequalities to get: 1 + s + t < r + s + t
Subtract s from both sides to get: 1 + t < r + t
Subtract t from both sides to get: 1 < r
If 1 < r, then we can be certain that Quantity B is greater
Answer: B
Cheers,
Brent
Re: r + s + t > 1 and 0 > s + t
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30 Jun 2021, 03:17
30 Jun 2021, 03:17
1
r+s+t>1 and s+t<0
s+t has 2 cases;
1)-5-3<0 here r must be >9. so that 10+-8>1
2) -5+3<0 here r must >3. that 4-2>1
In either case, r is bigger than 1.
s+t has 2 cases;
1)-5-3<0 here r must be >9. so that 10+-8>1
2) -5+3<0 here r must >3. that 4-2>1
In either case, r is bigger than 1.
