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On a certain day it took Bill three times as long to drive [#permalink]
19 May 2007, 10:30
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Q. On a certain day it took Bill three times as long to drive from home to work as it took Sue to drive from home to work. How many kilometers did Bill drive from home to work?
(1) Sue drove 10 kilometers from home to work, and the ratio of distance driven from home to work time to drive from home to work was the same for Bill and Sue that day. (2) The ratio of distance driven from home to work time to drive from home to work for Sue that day was 64 kilometers per hour.
I am basically not able to comprehend the underlined part..
What I get from statement1 is - the speed of BILL and SUE are same. If BILL takes 3 times longer as SUE takes to reach home to work, that means the BILL drove three times the distance SUE drove. Hence BILL drove 30 kms.
This looks SUFF.
Statment2 is INSUFF
Answer should be 'A'.
Can somebody justify the OA.