Brain Teasers
Tell The Truth 2
A school has 200 students. All of the students are very special. Some of them ALWAYS tell the truth, and the rest of them, NEVER tell the truth. Among the subject areas of math, science, and social studies, each student has one favorite. A survey was conducted, each student was asked three yes-or-no questions. The questions were: "Do you like math the most?" "Do you like science the most?" "Do you like social studies the most?"
The results were as follows:
104 students said "yes," they like math the most.
86 students said "yes," they like science the most.
60 students said "yes," they like social studies the most.
How many students tell the truth, and how many do not?
The results were as follows:
104 students said "yes," they like math the most.
86 students said "yes," they like science the most.
60 students said "yes," they like social studies the most.
How many students tell the truth, and how many do not?
Hint
Check how many "yes" answers there were in total and how many students are in the school.Answer
There are 150 students who tell the truth and 50 students who do not.Students who tell the truth will answer "yes" to one favorite subject, whereas those not telling the truth will answer "yes" to two subjects (but not to their real favorite). Since there are 250 answers (104 + 86 + 60), there are 50 extra "yes" answers, from the 50 students who do not tell the truth.
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Comments
I liked this even though it veers sharply from reality. (The 3 questions beg to be combinded as one multiple choice, which the liars could not answer with a single selection.)
SUPER GREAAT TEASER!!!!!!!!
I actually heard this before, but itz still good!
Ahmmmmmmmmm itz great....
brilliant !
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