A group of people participate in some curriculums, 20 of them practice Yoga, 10 study cooking, 12 study weaving, 3 of them study cooking only, 4 of them study both the cooking and yoga, 2 of them participate all curriculums. How many people study both cooking and weaving?
A.1 B.2 C.3 D.4 E.5
Soln: We know there are 10 people who do cooking as an activity.
3 -> people who do only cooking
4 -> do cooking and Yoga
2 -> do all of the activities
x -> number of people doing cooking and weaving
When you sum all this up, we should have 10. So 3+4+2+x=10 --> x=10-9=1
****
I thought the answer was (C).
I did: 10-4-x=3
x=3
Please guide...thank you!!!
Set of 3
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ellexay wrote:A group of people participate in some curriculums, 20 of them practice Yoga, 10 study cooking, 12 study weaving, 3 of them study cooking only, 4 of them study both the cooking and yoga, 2 of them participate all curriculums. How many people study both cooking and weaving?
A.1 B.2 C.3 D.4 E.5
Soln: We know there are 10 people who do cooking as an activity.
3 -> people who do only cooking
4 -> do cooking and Yoga
2 -> do all of the activities
x -> number of people doing cooking and weaving
When you sum all this up, we should have 10. So 3+4+2+x=10 --> x=10-9=1
****
I thought the answer was (C).
I did: 10-4-x=3
x=3
Please guide...thank you!!!
Guys
Don't you think that answer should be C i.e 3
Statement states that
A group of people participate in some curriculums, 20 of them practice Yoga, 10 study cooking, 12 study weaving, 3 of them study cooking only, 4 of them study both the cooking and yoga, 2 of them participate all curriculums. How many people study both cooking and weaving?
I think if statement read as "both cooking and yoga ONLY" then only we can take C + Y = 4 otherwise
Cooking + Yoga Only = 2 (cooking + yoga - all activities)
therefore explanation given by ellaxy is correct
Please correct me!
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I got A.1 by doing some Diagrams. I think we have to assume that 4 of them study both the cooking and yoga means exclusively. Otherwise we couldn't discern between those 4 and the two that were taking all 3 courses. We are told 2 of the students participate in all 3 curriculum. We can assume from that that they are also taking Yoga and Cooking and there would be no need to count them again exclusively for just Yoga and Cooking.
Diagramming it should help clarify it for you. It did for me at least
Diagramming it should help clarify it for you. It did for me at least
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Question is lacking clarity.
Answer would be A.. if we modify the question as below.
A group of people participate in some curriculums, 20 of them practice Yoga, 10 study cooking, 12 study weaving, 3 of them study cooking only, 4 of them study both the cooking and yoga only , 2 of them participate all curriculums. How many people study both cooking and weaving only ?
Answer would be A.. if we modify the question as below.
A group of people participate in some curriculums, 20 of them practice Yoga, 10 study cooking, 12 study weaving, 3 of them study cooking only, 4 of them study both the cooking and yoga only , 2 of them participate all curriculums. How many people study both cooking and weaving only ?
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You know that it's going to be a horribly worded question as soon as you see the word "curriculums" in the first sentence (and "participate in some curriculums" is also non-idiomatic, even if "curriculums" was a word).
If you find non-official questions written in nonsensical English, your best bet is to completely ignore them; trying to solve them will often hurt your progress more than help it.
If you find non-official questions written in nonsensical English, your best bet is to completely ignore them; trying to solve them will often hurt your progress more than help it.
Stuart Kovinsky | Kaplan GMAT Faculty | Toronto
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I believe it's much more easy if you solve with a Ven's Diagram. Took < 1 min with VD
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