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50 professional Income-tax advisors given identical records.
All 50 got different outcomes.
only one was technically correct.


(A) Only one out of every twenty income-tax returns prepared by any given professional income-tax advisor will be correct.
The ratio is incorrect: 1 out of 50 is correct.

(B) The fact that a tax return has been prepared by a professional income-tax advisor provides no guarantee that the tax return has been correctly prepared.
This is correct! Yes. 1 correct out of 50 from professoinal income-tax advisors. Pretty alarming!

(C) In order to ensure that tax returns are correct, it is necessary to hire professional income-tax advisor to prepare them.
Having that high rate for error is not encouraging me to believe this.

(D) All professional income-tax advisors make mistakes on at least some of the tax returns they prepare.
One got it correct! So ALL is extreme claim.

(E) People are more likely to have an incorrectly prepared tax return if they prepare their own tax returns than if they hire a professional income-tax advisor.
Hmm. We don't know any information about non-professional preparing income-tax.
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shahebali
Fifty professional income-tax advisors were given identical records from which to prepare an income-tax return. The advisors were not aware that they were dealing with fictitious records compiles by a financial magazine. No two of the completed tax returns agreed with each other, and only one was technically correct.

If the information above is correct, which one of the following conclusion can be properly drawn on the basis of it?

(A) Only one out of every twenty income-tax returns prepared by any given professional income-tax advisor will be correct.
(B) The fact that a tax return has been prepared by a professional income-tax advisor provides no guarantee that the tax return has been correctly prepared.
(C) In order to ensure that tax returns are correct, it is necessary to hire professional income-tax advisor to prepare them.
(D) All professional income-tax advisors make mistakes on at least some of the tax returns they prepare.
(E) People are more likely to have an incorrectly prepared tax return if they prepare their own tax returns than if they hire a professional income-tax advisor.

B is the right answer

which one of the following conclusion can be properly drawn on the basis of it?
B is the perfect conclusion for this information
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shahebali
Fifty professional income-tax advisors were given identical records from which to prepare an income-tax return. The advisors were not aware that they were dealing with fictitious records compiles by a financial magazine. No two of the completed tax returns agreed with each other, and only one was technically correct.

If the information above is correct, which one of the following conclusion can be properly drawn on the basis of it?

(A) Only one out of every twenty income-tax returns prepared by any given professional income-tax advisor will be correct.
(B) The fact that a tax return has been prepared by a professional income-tax advisor provides no guarantee that the tax return has been correctly prepared.
(C) In order to ensure that tax returns are correct, it is necessary to hire professional income-tax advisor to prepare them.
(D) All professional income-tax advisors make mistakes on at least some of the tax returns they prepare.
(E) People are more likely to have an incorrectly prepared tax return if they prepare their own tax returns than if they hire a professional income-tax advisor.

(A) Only one out of every twenty income-tax returns prepared by any given professional income-tax advisor will be correct. Too strong to conclude.

(B) The fact that a tax return has been prepared by a professional income-tax advisor provides no guarantee that the tax return has been correctly prepared.

(C) In order to ensure that tax returns are correct, it is necessary to hire professional income-tax advisor to prepare them. All the 50 above were professionals, still we have no guarantee.

(D) All professional income-tax advisors make mistakes on at least some of the tax returns they prepare. Too strong

(E) People are more likely to have an incorrectly prepared tax return if they prepare their own tax returns than if they hire a professional income-tax advisor. Out of scope.

Hence (B)
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KarishmaB GMATNinja RonTargetTestPrep EMPOWERgmatVerbal ExpertsGlobal5 egmat

This question is fairly easy to solve, can you please share you insights over prethinking
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Rickooreo
KarishmaB GMATNinja RonTargetTestPrep EMPOWERgmatVerbal ExpertsGlobal5 egmat

This question is fairly easy to solve, can you please share you insights over prethinking

Prethinking isn't very useful in inference questions. You can make many inferences based on the argument. You could a small part of the argument for your conclusion and it would still be correct.
Here, the only thing relevant to the correct option is that 1 out of 50 professionals prepared the correct return. So option (B) is correct.
Another conclusion could be that all professional advisors do not make identical returns etc.

You could benefit in assumption questions from pre-thinking but don't waste time on it. If something comes to your mind straight away, great! It could help you get to the answer faster. Else evaluate the options. When we have clues, why would we wrestle without them?
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Most of the professionals are wrong, so it is likely that if they prepare tax return the documentation will be wrong or not correct.
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