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26 Jun 2025, 00:30
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
5%
(low)
Question Stats:
91% (01:00) correct
9%
(01:06)
wrong
based on 79
sessions
History
Date
Time
Result
Not Attempted Yet
A certain section of a library currently has how many books?
(1) If 20 additional books are bought for this section and 10 of the present books are moved into a different section, then there are 100 books left in this section.
(2) If no additional books are bought for this section but 30 of the present books are moved into a different section, there will be fewer than 50 books in this section
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
(1) If 20 additional books are bought for this section and 10 of the present books are moved into a different section, then there are 100 books left in this section.
(2) If no additional books are bought for this section but 30 of the present books are moved into a different section, there will be fewer than 50 books in this section
Gentle note to all experts and tutors: Please refrain from replying to this question until the Official Answer (OA) is revealed. Let students attempt to solve it first. You are all welcome to contribute posts after the OA is posted. Thank you all for your cooperation!
26 Jun 2025, 03:32
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Let the current number of books be x
From statement (1): x + 20 − 10 = 100
⇒ x = 90
Statement (2) : It will provide us a range of values
x -30 <= 50
⇒ x <= 80
(A) Answer: Statement (1) alone is sufficient to answer the question
From statement (1): x + 20 − 10 = 100
⇒ x = 90
Statement (2) : It will provide us a range of values
x -30 <= 50
⇒ x <= 80
(A) Answer: Statement (1) alone is sufficient to answer the question
26 Jun 2025, 04:24
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Let the number of books be x
S1
x+20-10=100
x=100-10=90
Sufficient
S2
x-30<50
x<80
It could be 50,60,75, anything
Insufficient
Answer A
PS: Strangely, the statements have conflicting information.
S1
x+20-10=100
x=100-10=90
Sufficient
S2
x-30<50
x<80
It could be 50,60,75, anything
Insufficient
Answer A
PS: Strangely, the statements have conflicting information.
Bunuel
