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Difficulty:
5%
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Question Stats:
96% (01:02) correct
4%
(01:16)
wrong
based on 1471
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Carlotta can drive from her home to her office by one of two possible routes. If she must also return by one of these routes, what is the distance of the shorter route?
(1) When she drives from her home to her office by the shorter route and returns by the longer route, she drives a total of 42 kilometers.
(2) When she drives both ways, from her home to her office and back, by the longer route, she drives a total of 46 kilometers.
(1) When she drives from her home to her office by the shorter route and returns by the longer route, she drives a total of 42 kilometers.
(2) When she drives both ways, from her home to her office and back, by the longer route, she drives a total of 46 kilometers.
24 Feb 2014, 06:59
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Carlotta can drive from her home to her office by one of two possible routes. If she must also return by one of these routes, what is the distance of the shorter route?
(1) When she drives from her home to her office by the shorter route and returns by the longer route, she drives a total of 42 kilometers --> S + L = 42. Not sufficient.
(2) When she drives both ways, from her home to her office and back, by the longer route, she drives a total of 46 kilometers --> L + L = 46 --> L = 23 kilometers. Not sufficient.
(1)+(2) Since from (2) L = 23 kilometers, then from (1) S + 23 = 42 --> S = 19 kilometers. Sufficient.
Answer: C.
(1) When she drives from her home to her office by the shorter route and returns by the longer route, she drives a total of 42 kilometers --> S + L = 42. Not sufficient.
(2) When she drives both ways, from her home to her office and back, by the longer route, she drives a total of 46 kilometers --> L + L = 46 --> L = 23 kilometers. Not sufficient.
(1)+(2) Since from (2) L = 23 kilometers, then from (1) S + 23 = 42 --> S = 19 kilometers. Sufficient.
Answer: C.
General Discussion
24 Feb 2014, 10:50
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Option C.
From S1:we can infer than Short+Long=42kms or
Shorter will be less than 21 kms and longer more than 21 kms.
Not suff.
From S2:Long route=46/2=23kms.
Still short route can't be found out.Not suff.
Combining the 2 statements:s+l=42
And l=23kms
S=19kms
Both are together suff.
Posted from my mobile device
From S1:we can infer than Short+Long=42kms or
Shorter will be less than 21 kms and longer more than 21 kms.
Not suff.
From S2:Long route=46/2=23kms.
Still short route can't be found out.Not suff.
Combining the 2 statements:s+l=42
And l=23kms
S=19kms
Both are together suff.
Posted from my mobile device
