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01 Oct 2025, 01:38
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C
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:
81% (01:04) correct
19%
(01:02)
wrong
based on 106
sessions
History
Date
Time
Result
Not Attempted Yet
What was the number of roses produced by a certain rosebush during 1981?
(1) For each rose it produced during 1980, the rosebush produced 1.4 roses during 1981.
(2) In 1981 the rosebush produced exactly 10 more roses than it produced the previous year.
(1) For each rose it produced during 1980, the rosebush produced 1.4 roses during 1981.
(2) In 1981 the rosebush produced exactly 10 more roses than it produced the previous year.
01 Oct 2025, 02:04
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Let roses in 1980 = x, roses in 1981 = y.
We want y.
(1) y = 1.4x.
This only relates y to x, but no actual number is given. Not sufficient.
(2) y = x + 10.
Again, only a relation between x and y, no number. Not sufficient.
(1) + (2):
From (1), y = 1.4x.
From (2), y = x + 10.
So: 1.4x = x + 10 → 0.4x = 10 → x = 25.
Then y = 1.4 × 25 = 35.
Unique value.
Answer: C
We want y.
(1) y = 1.4x.
This only relates y to x, but no actual number is given. Not sufficient.
(2) y = x + 10.
Again, only a relation between x and y, no number. Not sufficient.
(1) + (2):
From (1), y = 1.4x.
From (2), y = x + 10.
So: 1.4x = x + 10 → 0.4x = 10 → x = 25.
Then y = 1.4 × 25 = 35.
Unique value.
Answer: C
01 Oct 2025, 04:33
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Bunuel
We need to find the number of roses produced in the year 1981.
statement 1:
(1) For each rose it produced during 1980, the rosebush produced 1.4 roses during 1981.
Let the number of rose produced in 1980 = x
The number of rose produced in 1981 = 1.4x
Since, we don’t know the value of x.
Insufficient.
Statement 2:
(2) In 1981 the rosebush produced exactly 10 more roses than it produced the previous year.
Let the number of rose produced in 1980 = x
During 1981 , the number of roses = x+10.
Since, we don’t know the value of x.
Insufficient.
Combining Statements 1 and 2, we get
1.4 x = x +10
0.4 x = 10
x = 100/4 =25.
Then the number of roses in 1981 = 1.4x = x + 10 = 35.
Hence, Sufficient
Option C
