dang ding dong

Computer Science Level 2

if all dang are ding , some ding are dong , then ....

all dang are dong all dong are ding all were wrong all dong are dang

Math Man by math man , 20, Indonesia

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3 solutions

Mj M
Dec 29, 2014

Categorical syllogism. Answer must be "some dang are dong" or all were wrong.

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David Ng
Oct 13, 2014

We can solve this using set theory. All elements of the set dang are in the set of ding, but only some of the elements of ding are in dong.

This is best illustrated with a venn diagram with dang in a circle enclosed by circle ding. Circle dong then intercepts both circle dang and circle ding. We can then see that none of the answers provided are correct, as there is always an exception. Therefore, all of the other answers are wrong.

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Sajitha Nair
Oct 3, 2014

consider dang as a subset of ding (from first statement) ... From second statement dong may be a set that contains some subset of ding and also some subset of dang . So all answer statements given are wrong

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