Was Lisa's salary at least twice as much as Julie's annual

Question

Was Lisa's salary at least twice as much as Julie's annual salary?

(1) Lisa's annual salary was $20,000 more than Julies annual salary
(2) Lisa's anual salary was less than $40,000

pmenon · Answer

I get A. We have to find out if l >=2j , where l is lisas salary, and j is julie's salary.

from stat 1, l=j+20,000, in other words, is j+20,000 >=2j --> we get that 20,000 >=j. So, witht this known, no matter what number you pick for j, if you add 20,000 to it to get lisa's salary, you will see that its always at least twice as large.

from stat 2, you only know lisas salary and nothing about julies. insuff

DavidArchuleta · Answer

I think it's C:
L>=J is not an assumption, it's a question though.
1: L= J+20 (nothing could be drawn from here)
2: L<40 (nothing too)

L=J+20 and L<40 so J<20
J<20 and L= J+20 so 2J<L

sondenso · Answer

Guys, 2J<40, L also <40, how do you know 2J<L?
I think the OA wrong!

vesam · Answer

Question: L >= 2J
(1). L = J + 20
J + 20 >= 2J
J > 20
But not sure about Lisa. Insufficient

(2) L < 40
From this statement alone we cannot identify what is J's salary. So insufficient

Combining (1) and (2)

L = J + 20; L < 40 and J > 20,
Comining this we can identify the solution; IMO C

MHIKER · Answer

I am confused with this DS. Need clear help.

Bunuel · Answer

Was Lisa's salary at least twice as much as Julie's annual salary? Question: is L\geq{2J} ? (1) Lisa's annual salary was $20,000 more than Julies annual salary --> J=L-20 --> question becomes: is L\geq{2(L-20)} ? --> is L\leq{40} ? We don't know that. Not sufficient. Example: L=50 and J=30 --> answer NO; L=40 and J=20 --> answer YES. (2) Lisa's anual salary was less than $40,000 --> L<40 , clearly insufficient as no info about J. (1)+(2) From (1) question boiled down to: "is L\leq{40} " and (2) says that L<40 , so the asnwer is YES. Sufficient. Answer: C.

saurabh4098 · Answer

I believe, OA must be E here.

Because Case 1: Say J has salary of 19K dollars and adding 20K dollars to it will add up to 39K (Satisfying option2)
Case 2: Say J has salary 5K and adding 20K to it will add up to 25K but giving contradicting answers for the above question thus OA should be E!

Open for a debate if i am wrong

bumpbot · Answer

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Was Lisa's salary at least twice as much as Julie's annual

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GMAT Data Sufficiency (DS) Questions

Was Lisa's salary at least twice as much as Julie's annual

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