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29 Apr 2024, 01:30
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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:
25%
(medium)
Question Stats:
79% (01:34) correct
21%
(01:55)
wrong
based on 72
sessions
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Not Attempted Yet
Vijay made a telephone call. If Vijay's total cost for the call was $15.15, for what number of minutes was he charged?
(1) the telephone charges were $0.75 in total for the first two minutes and $0.45 for each additional minute or fraction of a minute.
(2) if the charge for the first two minutes had been $1.70, Vijay's total cost would have been $16.10
(1) the telephone charges were $0.75 in total for the first two minutes and $0.45 for each additional minute or fraction of a minute.
(2) if the charge for the first two minutes had been $1.70, Vijay's total cost would have been $16.10
29 Apr 2024, 06:00
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(1) the telephone charges were $0.75 in total for the first two minutes and $0.45 for each additional minute or fraction of a minute.
Let the number of minutes that Vijay was charged for = \(x\)
\(0.75 + 0.45(x-2) = 15.15\)
\(0.45x - 0.15 = 15.15\)
\(0.45x = 15.30\)
\(x = 34\)
SUFFICIENT
(2) if the charge for the first two minutes had been $1.70, Vijay's total cost would have been $16.10
From this one can deduce that the difference between the two phonecalls is \(16.10 - 15.15 = 0.95\) and thus the first two minutes of the phonecall are charged at \(0.75\). However, not enough is known about the pay structure. Is each minute equally charged? Is there a set price for the first two minutes and another price for the rest?
INSUFFICIENT
ANSWER A
Let the number of minutes that Vijay was charged for = \(x\)
\(0.75 + 0.45(x-2) = 15.15\)
\(0.45x - 0.15 = 15.15\)
\(0.45x = 15.30\)
\(x = 34\)
SUFFICIENT
(2) if the charge for the first two minutes had been $1.70, Vijay's total cost would have been $16.10
From this one can deduce that the difference between the two phonecalls is \(16.10 - 15.15 = 0.95\) and thus the first two minutes of the phonecall are charged at \(0.75\). However, not enough is known about the pay structure. Is each minute equally charged? Is there a set price for the first two minutes and another price for the rest?
INSUFFICIENT
ANSWER A
Shwarma
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29 Apr 2024, 09:08
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Option E?
The question says it can be a fraction of a minute too.
so from option A
it can be 2+32
OR 2+31.5
OR
2+31.01
so we cannot tell how many exactly
So it is NOT sufficient correct?
The question says it can be a fraction of a minute too.
so from option A
it can be 2+32
OR 2+31.5
OR
2+31.01
so we cannot tell how many exactly
So it is NOT sufficient correct?
From my understanding, regardless of the decimal value of the length of the call, it will be rounded up to the nearest integer value (eg. 31.3 minutes after the first two minutes is charged as if it had been 32 minutes).
