Brain Teasers
Late to School?
Leong was returning to his school, Raffles Junior College, after the week-long September school holidays. However, it seems that he has yet to get used to waking up early.
On the first day, he was late for school but managed to be early the next two days. The next day, he was late again. On the day after that, it rained but he was on time. He was sick on the following day and stayed at home.
What is the probability of him reporting late for lessons at Raffles Junior College the next day?
On the first day, he was late for school but managed to be early the next two days. The next day, he was late again. On the day after that, it rained but he was on time. He was sick on the following day and stayed at home.
What is the probability of him reporting late for lessons at Raffles Junior College the next day?
Hint
Reread and count slowly.Answer
The probability is 0%.Monday - late
Tuesday - early
Wednesday - early
Thursday - late
Friday - on time
Saturday - stayed at home
Sunday - no lessons (The school is not even open!)
Hide Hint Show Hint Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
I got this one right!!! Awesome teaser.
... Unless he went to Sunday school, of course
Some schools are open Mon-Fri, or Mon-Sat, or even some are open on Sundays.
easy easy easy but good
It says "lessons at Raffles Junior College", so Sunday school is out. The mods seem to think that schools don't have lessons on sat or sun, but i remove the sat choice by saying he's sick and stayed home. And if you check the name of the school, you'll find it is in a country where schools don't open on sundays.
I love that It was the best thnx for putting tht teaser on here
Great teaser.
i got it right ..booya
wow, that was fun, but it was sad because that was what i was thinking of in the back of my head the entire time
PLEASE get rid of the hint. You're killing your difficulty rating. Otherwise good though.
I thought is was easy but fun. Since it was in TRICK I got if right away. Otherwise I'd still be sitting here, hurting my brain, trying to figure out the probability.
i got it rite!!!!!!!!!!!! nice teaser!
Tricky... Good teaser thingie
this makes honestly no sense
wait a minute then this teaser should have been rejected because how were we supposed to know he had no school on sundays?
In almost every country schools don't even open on sunday. And if you check the school name, it is in a country with a five-day week policy.
im too smart...i was thinking about actuall school days...skipping th eweekend...lol
how do you know it is not a sunday school?
LeafFan4life: read above comments.
ok,good idea
everybody can figure this out!
Very simple, but good job
I got this rigt!!! YAY ME!!!
Good one Shdwhawk, ignore the dissers.
School isnt open on saturday!!!!!!!!!!!
That depends on your country... Besides, he was sick on saturday.
that could prove false
Couldn't figure it out.
I got it right away!
Simple yet fun! Great teaser.
Oct 11, 2007
I figured it out!
LOL
Yay I got it! Had it been a real probability teaser, I'd have gotten it wrong. Yay for Trick teasers!
Thank the mods. They switched it to trick.
Haha...... Good but hard teaser.
KILL THE HINT! It totally gave it away.
if he goes to Sunday school....
-_-'' Raffles Junior College is obviously not a sunday school.
lucky B@$T@TD gets a week long vacation in september
leong is the same person who had to put the labels on the boxes when the wind blew!
Nice teaser but take away the hint or else everyone will get it...otherwise great!
To post a comment, please create an account and sign in.
Follow Braingle!