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28 Mar 2025, 00:30
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D
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
79% (01:23) correct
21%
(01:24)
wrong
based on 67
sessions
History
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Not Attempted Yet
Total amount collected from an officer for a charity cause was $250. If each employee contributed either $20 or $25, how many employees contributed $20?
(1) The number of employees in the office is 11.
(2) The number of employees who gave $25 was 1 more than the number of employees who gave $20.
(1) The number of employees in the office is 11.
(2) The number of employees who gave $25 was 1 more than the number of employees who gave $20.
28 Mar 2025, 00:48
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Let employees who contributed 20 be x and who contributed 25 be y
20x+25y = 250 => 4x + 5y = 50 - (1)
x= ?
Statement 1
x+y = 11
Using eqn 1,
4x + 5y = 50
We have 2 statements, we can solve for x
Suffcient
Statement 2
y = x+1
Using eqn 1,
4x + 5y = 50
We have 2 statements, we can solve for x
Suffcient
Answer D
20x+25y = 250 => 4x + 5y = 50 - (1)
x= ?
Statement 1
x+y = 11
Using eqn 1,
4x + 5y = 50
We have 2 statements, we can solve for x
Suffcient
Statement 2
y = x+1
Using eqn 1,
4x + 5y = 50
We have 2 statements, we can solve for x
Suffcient
Answer D
Bunuel
28 Mar 2025, 04:46
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Attachment:
GMAT-Club-Forum-qfxnzh3o.png [ 148.15 KiB | Viewed 951 times ]
An approach that involves finding the set of possible solutions for (a,b) from the given information before going to the statements.
The answer should be choice D.
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Harsha
