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07 Apr 2025, 00:30
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
85%
(hard)
Question Stats:
49% (02:06) correct
51%
(01:48)
wrong
based on 149
sessions
History
Date
Time
Result
Not Attempted Yet
In a certain store, the price of five pens is equal to the price of a notebook. What is the cost of a ruler in this store?
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
Source: Veritas Prep
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
Source: Veritas Prep
07 Apr 2025, 00:38
Kudos
Bookmarks
5P = N
R = ?
Statement 1
4P + 2N = 10 + 6R
4P + 10P = 10 + 6R
14P = 6R + 10
3R = 7P - 5
We do not have value of P to calculate value of R
Insufficient
Statement 2
7N = 15 R + 25
We do not have value of N to calculate value of R
Insufficient
Combined
3R = 7P - 5
35P = 15R + 25
7P - 5 = 3R
Both equations are same, we cannot solve for R. Insufficient
Answer E
R = ?
Statement 1
4P + 2N = 10 + 6R
4P + 10P = 10 + 6R
14P = 6R + 10
3R = 7P - 5
We do not have value of P to calculate value of R
Insufficient
Statement 2
7N = 15 R + 25
We do not have value of N to calculate value of R
Insufficient
Combined
3R = 7P - 5
35P = 15R + 25
7P - 5 = 3R
Both equations are same, we cannot solve for R. Insufficient
Answer E
Bunuel
07 Apr 2025, 08:51
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Given: 5P=1N
Find: Cost of a ruler (R)
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
4P+2N =10+ 6R
4P+2(5P)=10+6R
14P=10+6R
Insufficient
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
7N=25+15R
7(5P)=25+15R
35P=25+15R or 7P=5+3R or 14P=10+6R
Insufficient
Taking both (1)&(2)
Both equations are same, so insufficient
Answer: E
Find: Cost of a ruler (R)
(1) The cost of four pens and two notebooks is 10 dollars more than the cost of six rulers.
4P+2N =10+ 6R
4P+2(5P)=10+6R
14P=10+6R
Insufficient
(2) The cost of seven notebooks is 25 dollars more than the cost of 15 rulers.
7N=25+15R
7(5P)=25+15R
35P=25+15R or 7P=5+3R or 14P=10+6R
Insufficient
Taking both (1)&(2)
Both equations are same, so insufficient
Answer: E
