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Source: — Data Sufficiency |
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by kvcpk » Mon Aug 02, 2010 2:13 am
clammiestqasar wrote:Q. Is p+q> r +s
p>r+s
Q>r+s
p>r+s
No Info about q.. INSUFF
Q>r+s
No info aboout p.. INSUFF
Combining:
p>r+s
Q>r+s
Let p =2,r=-1, s=0, q=2
2>-1, 3>-1
2+3= 5>-1.. TRUE

Let p = -30, q= -10, r = -20, s= -20
-30>-20-20
-10>-20-20
-30-10>-20-20.. False

HENCE INSUFF

pick E
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by selango » Mon Aug 02, 2010 2:14 am
p+q>r+s

stmt1,

p>r+s

No info abt q

Insuff

stmt2,

q>r+s

No info abt p

Insuff

Combining 1 and 2,

p+q>2(r+s)

r+s=2

p+q>4-->p+q>r+s

r+s=-1 and p+q=-1

p+q>2(r+s)

But p+q=r+s

Insuff

Pick E
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by sumanr84 » Mon Aug 02, 2010 2:32 am
clammiestqasar wrote:Q. Is p+q> r +s
p>r+s
Q>r+s
Whenever you see an answer coming without use of pen using both the options , Be suspicious and do a recheck. This is called C trap.
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