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18 Oct 2019, 13:46
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If oven cleaner is added to household bleach the mixture emits chlorine gas. A mixture of bathtub cleanser and household bleach also emits chlorine gas. If ordinary soap is added to household bleach, no gases are emitted. When an unidentified cleaning agent was added to household bleach, no chlorine gas was emitted.
If the statements above are all true, which of the following can be determined conclusively on the basis of them about the unidentified cleaning agent?
(A) It was ordinary soap.
(B) It was either oven cleaner or bathtub cleanser.
(C) It was neither oven cleaner nor bathtub cleanser.
(D) It contained ordinary soap and either oven cleaner or bathtub cleanser.
(E) It contained ordinary soap and neither oven cleaner nor bathtub cleanser.
Kudos for the right answer and explanation
Kudo for the author of the post.
If the statements above are all true, which of the following can be determined conclusively on the basis of them about the unidentified cleaning agent?
(A) It was ordinary soap.
(B) It was either oven cleaner or bathtub cleanser.
(C) It was neither oven cleaner nor bathtub cleanser.
(D) It contained ordinary soap and either oven cleaner or bathtub cleanser.
(E) It contained ordinary soap and neither oven cleaner nor bathtub cleanser.
Kudos for the right answer and explanation
Kudo for the author of the post.
18 Oct 2019, 19:03
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Might not be GMAT problem, but giving more insight into concept of critical reasoning.
We need to very specific to conclude something. Though we know that mixing of bathtub cleanser or oven cleaner with household bleach will emit Chlorine gas and ordinary soap doesn't emit chlorine after mixing with household bleach.
Now an mixing of unidentified with household bleach didn't emit chlorine doesn't mean that the unidentified part was bathtub. It can be other substance too. But surely, it is not bathtub cleanser or oven cleaner.
C is correct.
We need to very specific to conclude something. Though we know that mixing of bathtub cleanser or oven cleaner with household bleach will emit Chlorine gas and ordinary soap doesn't emit chlorine after mixing with household bleach.
Now an mixing of unidentified with household bleach didn't emit chlorine doesn't mean that the unidentified part was bathtub. It can be other substance too. But surely, it is not bathtub cleanser or oven cleaner.
C is correct.
carcass
If oven cleaner is added to household bleach the mixture emits chlorine gas. A mixture of bathtub cleanser and household bleach also emits chlorine gas. If ordinary soap is added to household bleach, no gases are emitted. When an unidentified cleaning agent was added to household bleach, no chlorine gas was emitted.
If the statements above are all true, which of the following can be determined conclusively on the basis of them about the unidentified cleaning agent?
(A) It was ordinary soap.
(B) It was either oven cleaner or bathtub cleanser.
(C) It was neither oven cleaner nor bathtub cleanser.
(D) It contained ordinary soap and either oven cleaner or bathtub cleanser.
(E) It contained ordinary soap and neither oven cleaner nor bathtub cleanser.
Kudos for the right answer and explanation
Kudo for the author of the post.
If the statements above are all true, which of the following can be determined conclusively on the basis of them about the unidentified cleaning agent?
(A) It was ordinary soap.
(B) It was either oven cleaner or bathtub cleanser.
(C) It was neither oven cleaner nor bathtub cleanser.
(D) It contained ordinary soap and either oven cleaner or bathtub cleanser.
(E) It contained ordinary soap and neither oven cleaner nor bathtub cleanser.
Kudos for the right answer and explanation
Kudo for the author of the post.
18 Oct 2019, 20:23
Kudos
Bookmarks
If oven cleaner (A) is added to household bleach (B) the mixture emits chlorine gas(X).
A mixture of bathtub cleanser(C) and household bleach(B) also emits chlorine gas(X).
If ordinary soap(D) is added to household bleach(B), no gases are emitted(Not X).
When an unidentified cleaning agent(U) was added to household bleach(B), no chlorine gas was emitted(Not X).
SO, the reasoning is -
A+B leads to X...C+B leads to X...D+B leads to Not X...U+B leads to Not X...
What can be said about U?
Ofcourse, we can say for sure that U is neither A nor B. It could be D or could be something else.
C
A mixture of bathtub cleanser(C) and household bleach(B) also emits chlorine gas(X).
If ordinary soap(D) is added to household bleach(B), no gases are emitted(Not X).
When an unidentified cleaning agent(U) was added to household bleach(B), no chlorine gas was emitted(Not X).
SO, the reasoning is -
A+B leads to X...C+B leads to X...D+B leads to Not X...U+B leads to Not X...
What can be said about U?
Ofcourse, we can say for sure that U is neither A nor B. It could be D or could be something else.
C
