A man buys a goat for $60, sells it for $70....

[Donald J Trump]

$90 cause that's what he ended up with

The question doesn't even ask for profit, just what he ended with which was $90 at the end.

It clearly says how much money did he make
Aka what is his profit on the two separate transactions combined

 

[[REDACTED]]

It clearly says how much money did he make
Aka what is his profit on the two separate transactions combined

That doesn't not mean net profit which is what you are assuming

If someone asks you how much you make a year, do you say your salary or what you have left at the end of the year?

 

[KushSkywalker]

$60 Goat

Goat -$60

$70 Goat

Goat $-80

$90 Goat

$90-$10 investment on second purchase =$80 $80-$60=$20


Can we stop chastising people who got the answer 10. It's very conceivable to see why, and easy to arrive at that answer doing this quickly in your head.

I don't think it makes you dumb. I came to the conclusion 10 off quickly doing this in my head in order as well and my last IQ test puts me well into the 99nth percentile.

But the answer is 20.

 

[NotAnFBIagent]

Some of yall clearly struggle with math

 

[AllHolosEve]

And that's the question that gets me. Why did they tell me it was the same goat.
What is special about this goat?

It's a play on words these brehs fail to understand... They said the same goat to see how it factors into the answer, look how it happened... If it was a different goat these dudes wouldn't be looking this stupid...

This is the famous Monty Hall delirium everyone should learn in high school. Yes you're odds are better when you switch doors. The simple reason is because there's three different scenarios?

Scenario1: You originally picked the car. You switched the door and got a goat

Scenario 2: you originally picked Goat 1, switched doors and choose the car.

Scenario 3: You originally picked Goat 2, switched doors and choose the car.

If you switch doors you have a 66.6666...% of picking the car. If you don't switch doors you're only left with the original 33.333...% chance.

All that math means nothing breh... Once one door gets exposed you have a 50% chance since you don't know what's behind your door...You go from 33% to 50%...

 

[Donald J Trump]

That doesn't not mean net profit which is what you are assuming

If someone asks you how much you make a year, do you say your salary or what you have left at the end of the year?

HOW MUCH MONEY DID YOU MAKE MEANS HOW MUCH MONEY DID YOU MAKE.. salary is not the same as profitable business transactions like the ones described in the OP

Either way $90 isn’t the correct answer

Revenue is $160
Profit is $20

 

[Brolic Scholar]

Breh there were links posted telling you the answer is $20,change your username

nikka eat a dikk.

 

[PYRRHUS 88]

It's a play on words these brehs fail to understand... They said the same goat to see how it factors into the answer, look how it happened... If it was a different goat these dudes wouldn't be looking this stupid...

All that math means nothing breh... Once one door gets exposed you have a 50% chance since you don't know what's behind your door...You go from 33% to 50%...

When you're faced with the choice to switch or not, there are only 2 remaining doors. How can their probablities be 33% and 50%? They need to sum to 100%

Edit: I seem to have misunderstood what you were saying. I guess you mean both doors have 50% probability of holding the prize. That's still not correct though.


Think about it as if you can repeat this game a whole bunch of times, and let's say your strategy is to always stick to your original choice. So you put some cotton in your ears and don't even listen when the host offers you the chance to switch. Your initial guess is correct 1/3 of the time, so you win 1/3 of the time.

Now say your strategy is to switch every time. When do you lose? Only when you initially guessed correctly, cuz then you'd be switching away from the prize. Since you initially guess correctly 1/3 of the time, you lose 1/3 of the time and win the other 2/3 of the time.

 

[Donald J Trump]

nikka eat a dikk.

Tell another man to eat a dikk because you found out you are not a scholar on thecoli.com the hard way brehs

 

[Blackrogue]

Breh there were links posted telling you the answer is $20,change your username

I've been trying to explain to him over and over. Even simplified it. Bruh had 60 dollars in his pocket. Borrows ten and has 90 dollars now.. 30 dollars-10 = 20...He's just confused by numbers.

Even links have been posted confirming the answer is 20 dollars. So it isn't just my opinion. It's the actual reality. Bruh really needs to think the whole thing through because we arrived at the right answer. He needs to review whst we've been saying for pages now.

@Brolic Scholar

1: you have to dollars and buy a goat. Sell it for 70 dollars. You are ten dollars. Agree or disagree?

2: you want to buy the goat at 80 dollars. You use 70 that you have and add another 10 dollars in Capital from another source.

3: you sell goat at 90 dollars.

At this point you have 90 dollars in your pocket. Your capital was 60 dollars plus the other ten dollars. You have 20 dollars more than when you started.

 

[raoulduke187]

$90

it says how much money did he make, not how much profit did he make

 

[R.E.N. Spells Ren]

When you're faced with the choice to switch or not, there are only 2 remaining doors. How can their probablities be 33% and 50%? They need to sum to 100%

Edit: I seem to have misunderstood what you were saying. I guess you mean both doors have 50% probability of holding the prize. That's still not correct though.


Think about it as if you can repeat this game a whole bunch of times, and let's say your strategy is to always stick to your original choice. So you put some cotton in your ears and don't even listen when the host offers you the chance to switch. Your initial guess is correct 1/3 of the time, so you win 1/3 of the time.

Now say your strategy is to switch every time. When do you lose? Only when you initially guessed correctly, cuz then you'd be switching away from the prize. Since you initially guess correctly 1/3 of the time, you lose 1/3 of the time and win the other 2/3 of the time.

I don't buy this. Your choice in the first round is a red herring, it has no bearing on the overall odds because the host was going to remove a goat no matter what door you chose. The only choice that matters is the choice you make in round two where you have a 50/50 shot, no matter what.

 

[PYRRHUS 88]

I don't buy this. Your choice in the first round is a red herring, it has no bearing on the overall odds because the host was going to remove a goat no matter what door you chose. The only choice that matters is the choice you make in round two where you have a 50/50 shot, no matter what.

The host will always remove a goat no matter what, as you say. So if you picked a goat initially, the host will remove the one remaining goat and the one he didn't remove must contain the car. So if you switch, you win. That occurs when you pick a goat initially, which is 2/3 of the time.

 

[GoFlipAPack]

So nikka? I come from a family of accountants you brick headed nikka. My mother runs a casino, my brother is in finance and I’m starting a trucking business. fukk outta here with that high horse bullshyt. The fukk you think you talking to lame? 1400 on your SAT and don’t know basic math. Congrats!

You come from a family of accountants but you ended up being the trucker lol,

No one take this negro serious, no one cheating off your paper trucker

He didnt say he was driving trucks. He said he was starting a business but even if he is driving a truck its HIS business. Hes has no boss. Not all of us can say that

 

[R.E.N. Spells Ren]

The host will always remove a goat no matter what, as you say. So if you picked a goat initially, the host will remove the one remaining goat and the one he didn't remove must contain the car. So if you switch, you win. That occurs when you pick a goat initially, which is 2/3 of the time.

I get what you're saying

In round one you have a 33% chance of picking the right door and a 66% chance of picking the wrong door. If you switch doors in round two, you've essentially taken those 66% odds.

I not sure I buy it as anything more than a probability anomaly, but I do understand what you're saying.