There are two known ways to make $1.00 out of 50 coins, what are they? Assuming that we are using American currency: $.01 $.05 $.10 $.25 $.50
Do we have to use precisely 50 coins?
There are two known ways to make $1.00 out of 50 coins, what are they? Assuming that we are using American currency: $.01 $.05 $.10 $.25 $.50
2*$0.10, 8*$0.05, 40*$0.01There are two known ways to make $1.00 out of 50 coins, what are they? Assuming that we are using American currency: $.01 $.05 $.10 $.25 $.50
Can someone spot what this pattern is, and in doing so find what starting (numbers) have a finite sequence:
1: 1, 11, 21, 1112, 3112, 211213, 312213, 212223...
2: 2, 12, 1112, 3112...
3: 3, 13, 1113, 3113, 2113, 211213...
4: 4, 14, 1114, 3114, 211314, 31121314, 41122314, 31221324...
Yes, but now it has been solved, I figured that it would take people a little longer than that.Do we have to use precisely 50 coins?
How do you make 1000 by adding eight 8s?
888+88+8+8+8
Something leads me to believe you've heard of a few of these before.
Actually, no, I'm just pretty good with numbers
Just going back to the original cat problem in post #1. The question says the girls are on the bus and the backpacks are on the bus and the big cats are in the backpacks so they are also on the bus...
BUT...
It doesn't say where the little cats are... so... it is just as valid to assume that the little cats are not on the bus so you do not count their legs...
It also doesn't mention how many boys, adults, centipedes, or pianos are in the bus, so, yes, it's poorly specified.It doesn't say where the little cats are... so... it is just as valid to assume that the little cats are not on the bus so you do not count their legs...
I'm still trying to figure out who's driving the bus, and how many legs they may (or may not) have.It also doesn't mention how many boys, adults, centipedes, or pianos are in the bus, so, yes, it's poorly specified.
Just going back to the original cat problem in post #1. The question says the girls are on the bus and the backpacks are on the bus and the big cats are in the backpacks so they are also on the bus...
BUT...
It doesn't say where the little cats are... so... it is just as valid to assume that the little cats are not on the bus so you do not count their legs...
Ok, since you asked.
There are 3 doors. Behind 1 door lies immense wealth and riches. Behind the other two lie certain death.
A guard asks you to choose a door and you pick #2. The guard then reveals to you what's behind Door #1 and you see that behind it was one of two chances of certain death.
The guard now asks you if you would like to change your selection from Door #2 to Door #3.
Mathematically is there a probability increase that benefits you if you change doors?
BTW, I don't know the answer to this, but I've seen it thrown around a few times
Blue.This one stumped me for a long time. I felt so stupid when i realized how easy it was.
"You are a bus driver. At your 1st stop you pick up 20 people. At your 2nd you drop off 10 and pick up 13. At your 3rd stop you drop off 11 and pick up 24. And at your 4th stop you pick drop off 7 people and pick up 9. What colour are the bus driver's eyes?"
A bus has stopped and the driver and all passengers, pets, and other living creatures have gotten off, except that one centipede remains on the floor under a seat. On top of the same seat is a take-out food carton, in which a passenger accidentally left a turkey leg and a lucky rabbit's foot.It also doesn't mention how many boys, adults, centipedes, or pianos are in the bus, so, yes, it's poorly specified.
Ok, since you asked.
There are 3 doors. Behind 1 door lies immense wealth and riches. Behind the other two lie certain death.
A guard asks you to choose a door and you pick #2. The guard then reveals to you what's behind Door #1 and you see that behind it was one of two chances of certain death.
The guard now asks you if you would like to change your selection from Door #2 to Door #3.
Mathematically is there a probability increase that benefits you if you change doors?
BTW, I don't know the answer to this, but I've seen it thrown around a few times
The problem remains insufficiently specified, as centipedes - assuming non-mutant ones with all of their legs - have between 30 (the typical number) and 354 legs. We at least need to know the species.A bus has stopped and the driver and all passengers, pets, and other living creatures have gotten off, except that one centipede remains on the floor under a seat. On top of the same seat is a take-out food carton, in which a passenger accidentally left a turkey leg and a lucky rabbit's foot.
How many legs are on the bus?
That is the correct answer. But you should have waited for somebody else to say 101, so we could tease them for not knowing their entomology.The problem remains insufficiently specified.