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Source: — Data Sufficiency |
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by selango » Thu Jul 08, 2010 10:33 pm
T1=D1/R1

T2=D2/R2

T1>T2?

From stmt1,

D1=D2+30

T1=D2+30/R1

We dont know abt both rates.Insuff

From stmt2,

R1=R2+30

We dont know abt both Distances.Insuff

T1=D2+30/R2+30

D2=50,R2=10-->T1=2 sec,T2=5 sec,T1<T2

D2=10,R2=10,T1=1,T2=1,T1=T2

Insuff

Hence E
--Anand--
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