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Re: Lampard appeared for an examination that had only two categories of [#permalink]
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chetan2u wrote:
DH99 wrote:
Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.60% of the total questions in the paper were multiple choice and rests were subjective whereas only 30% of all questions were subjective questions in category B.If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

A. 20%
B. 25%
C. 30%
D. 40%
E. 42 %



Hi...

the Q is all about understanding it well..
Two cases- difficult and moderate..
60% of T are multiple type so remaining 40% are subjective..
30% of T are subjective in B, so L missed out answering 10% of T, which were subjective and were in A..
so percentage of the subjective questions were not answered by Lampard = ( 10% of T/40% of T ) * 100 = \(\frac{1}{4}*100=25%\)
B


Dear,
Which part of the question mentioned L missed out answering 10% of T?
Thank you so much
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Re: Lampard appeared for an examination that had only two categories of [#permalink]
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pclawong wrote:
chetan2u wrote:
DH99 wrote:
Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.60% of the total questions in the paper were multiple choice and rests were subjective whereas only 30% of all questions were subjective questions in category B.If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

A. 20%
B. 25%
C. 30%
D. 40%
E. 42 %



Hi...

the Q is all about understanding it well..
Two cases- difficult and moderate..
60% of T are multiple type so remaining 40% are subjective..
30% of T are subjective in B, so L missed out answering 10% of T, which were subjective and were in A..
so percentage of the subjective questions were not answered by Lampard = ( 10% of T/40% of T ) * 100 = \(\frac{1}{4}*100=25%\)
B


Dear,
Which part of the question mentioned L missed out answering 10% of T?
Thank you so much


hi..

say category A has A Q and Category B has B q..
so A+B =t, that is total..
we are looking at subjective only..
now subjective is in category A and B both..
category B has 40% of (A+B)or 40% of T..

Quote:
only 30% of all questions were subjective questions in category B

this means he answered these 30% of T..

what subjective he didnot answer 40%of T - 30% of T= 10% of T..

total subjective were 40% of T and he did not answer 10% of T ..
so 10/40=25%
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Re: Lampard appeared for an examination that had only two categories of [#permalink]
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DH99 wrote:
Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.60% of the total questions in the paper were multiple choice and rests were subjective whereas only 30% of all questions were subjective questions in category B.If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

A. 20%
B. 25%
C. 30%
D. 40%
E. 42 %


Let the total number of questions in the exam be 100.
# of multiple choice questions= 60
# of subjective questions= 40 ("rests were subjective")
Out of 40 subjective questions, 30 are Subjective-B and 10 are Subjective-A. ("30% of all questions were subjective questions in category B": 30% of 100 questions)
Lampard answered all category B questions --> He answered 30 of the subjective questions and did not answer 10 of the subjective questions.
We have to find 10 is what percent of 40.
40*(x/100)=10 ==> x=25
Answer: B
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Re: Lampard appeared for an examination that had only two categories of [#permalink]
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DHAR wrote:
Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.60% of the total questions in the paper were multiple choice and rests were subjective whereas only 30% of all questions were subjective questions in category B.If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

A. 20%
B. 25%
C. 30%
D. 40%
E. 42 %


Given:
1. Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.
2. 60% of the total questions in the paper were multiple choice and rests were subjective
3. only 30% of all questions were subjective questions in category B.

Asked: If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

Multiple choice questions = 60%
Subjective questions = 40%

Subjective questions in category B = 30%
Subjective questions in category A = 40%-30%=10%

Since Lampard answered to category B questions only, he left 10% subjective questions of category A

Percentage of subjective questions not answered by Lampard = 10/40= 25%

IMO B

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Re: Lampard appeared for an examination that had only two categories of [#permalink]
Kinshook wrote:
DHAR wrote:
Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.60% of the total questions in the paper were multiple choice and rests were subjective whereas only 30% of all questions were subjective questions in category B.If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

A. 20%
B. 25%
C. 30%
D. 40%
E. 42 %


Given:
1. Lampard appeared for an examination that had only two categories of difficulty levels, category A that had all difficult questions and category B that had all moderate difficulty level questions.
2. 60% of the total questions in the paper were multiple choice and rests were subjective
3. only 30% of all questions were subjective questions in category B.

Asked: If Lampard answered to the category B questions only, what percentage of the subjective questions were not answered by Lampard?

Multiple choice questions = 60%
Subjective questions = 40%

Subjective questions in category B = 30%
Subjective questions in category A = 40%-30%=10%

Since Lampard answered to category B questions only, he left 10% subjective questions of category A

Percentage of subjective questions not answered by Lampard = 10/40= 25%

IMO B

Alternatively,

-------------------Subjective --------------Multiple choice------------Total
Category A ---------- 10%
Category B-----------30%--------------------
Total ---------------40%--------------------60%--------------------100%

Percentage of subjective questions not answered by Lampard = 10%/40%= 25%

IMO B
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Re: Lampard appeared for an examination that had only two categories of [#permalink]
Hi Experts,
This question appeared little differently in my mock test as below:

Jack appeared for an examination which had only two categories of difficulty levels, category A which had all difficult questions and category B which had all moderate difficulty level questions. 60% of the total questions in the paper were multiple choice and rest were subjective whereas only 30% of all questions were subjective questions in category B. If Jack answered the category B questions only, what percentage of the subjective questions were not answered by Jack?

20%
25%
30%
40%
Cannot be determined

- I ended up marking cannot be determined for this question, as in the question, it doesn't mention that Jack answered ALL the questions from section B, it simply says, Jack answered category B questions only.
So, let's say he could have answered only 5 out of 30, so, 25 from section B + 10 from section would be 35/100
so, there could be multiple combinations, Hence CBD as per me.

Also, I wanted to check if GMAT gives "CANNOT BE DETERMINED" as an option in PS questions
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Re: Lampard appeared for an examination that had only two categories of [#permalink]
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