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03 Jun 2021, 01:30
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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:
65%
(hard)
Question Stats:
56% (01:50) correct
44%
(02:00)
wrong
based on 212
sessions
History
Date
Time
Result
Not Attempted Yet
Every day Guy takes the same N sandwiches to work. Guy takes to work how many more sandwiches that contain only ginger jam than sandwiches that contain only peanut butter ?
(1) Every day Guy takes to work 5 more sandwiches that do not contain peanut butter than sandwiches that do not contain ginger jam.
(2) Every sandwich Guy takes to work contains peanut butter or ginger jam or both.
(1) Every day Guy takes to work 5 more sandwiches that do not contain peanut butter than sandwiches that do not contain ginger jam.
(2) Every sandwich Guy takes to work contains peanut butter or ginger jam or both.
04 Jun 2021, 01:15
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Every day Guy takes the same N sandwiches to work. Guy takes to work how many more sandwiches that contain only ginger jam than sandwiches that contain only peanut butter ?
{Total} = {ginger} + {peanut } - {both ginger and peanut} + {neither}.
The question asks to find the value of {only ginger} - {only peanut}.
Notice that since there can be some some other kinds of sandwiches (say bacon), than {only ginger} might NOT equal to {ginger} - {both ginger and peanut} and the same way {only peanut} might NOT equal to {peanut} - {both ginger and peanut}. Thus {only ginger} - {only peanut} might NOT equal to ({ginger} - {both ginger and peanut}) - ({peanut} - {both ginger and peanut}) = {ginger} - {peanut}.
(1) Every day Guy takes to work 5 more sandwiches that do not contain peanut butter than sandwiches that do not contain ginger jam.
# of sandwiches that do not contain peanut butter is {Total} - {peanut}.
# of sandwiches that do not contain ginger jam is {Total} - {ginger}.
So, we are given that ({Total} - {peanut}) - ({Total} - {ginger}) = {ginger} - {peanut} = 5.
Not sufficient.
(2) Every sandwich Guy takes to work contains peanut butter or ginger jam or both --> {Total} = {ginger} + {peanut } - {both ginger and peanut}. So, the question becomes:
{only ginger} - {only peanut } = ({ginger} - {both ginger and peanut}) - ({peanut} - {both ginger and peanut}) = {ginger} - {peanut} = ?
Not sufficient.
(1)+(2) {ginger} - {peanut} = 5. Sufficient.
Answer: C.
Hope it's clear.
{Total} = {ginger} + {peanut } - {both ginger and peanut} + {neither}.
The question asks to find the value of {only ginger} - {only peanut}.
Notice that since there can be some some other kinds of sandwiches (say bacon), than {only ginger} might NOT equal to {ginger} - {both ginger and peanut} and the same way {only peanut} might NOT equal to {peanut} - {both ginger and peanut}. Thus {only ginger} - {only peanut} might NOT equal to ({ginger} - {both ginger and peanut}) - ({peanut} - {both ginger and peanut}) = {ginger} - {peanut}.
(1) Every day Guy takes to work 5 more sandwiches that do not contain peanut butter than sandwiches that do not contain ginger jam.
# of sandwiches that do not contain peanut butter is {Total} - {peanut}.
# of sandwiches that do not contain ginger jam is {Total} - {ginger}.
So, we are given that ({Total} - {peanut}) - ({Total} - {ginger}) = {ginger} - {peanut} = 5.
Not sufficient.
(2) Every sandwich Guy takes to work contains peanut butter or ginger jam or both --> {Total} = {ginger} + {peanut } - {both ginger and peanut}. So, the question becomes:
{only ginger} - {only peanut } = ({ginger} - {both ginger and peanut}) - ({peanut} - {both ginger and peanut}) = {ginger} - {peanut} = ?
Not sufficient.
(1)+(2) {ginger} - {peanut} = 5. Sufficient.
Answer: C.
Hope it's clear.
General Discussion
03 Jun 2021, 02:18
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1) Tells us that J - P = 5. Issue is that we are not told that these sandwiches only contain Jam or only contain Peanut Butter. INSUFFICIENT
2) Tells us exactly what he uses on his sandwiches, but not the amount of each. INSUFFICIENT
1+2) Together it answers the question. We now know that the answer is definitely 5.
Answer C
2) Tells us exactly what he uses on his sandwiches, but not the amount of each. INSUFFICIENT
1+2) Together it answers the question. We now know that the answer is definitely 5.
Answer C
