Perplexing brainteaser/math problem

[m8875]

"A rooster is worth five coins, a hen three coins, and 3 chicks one coin. With 100 coins we buy 100 of them. How many roosters, hens, and chicks can we buy?"

Hint: Chicks have to be bought in multiples of 3. There are 4 different possibilities.

I won't post the answer until someone answers since last time it didn't work so well

 

[addictedtopurses]

"A rooster is worth five coins, a hen three coins, and 3 chicks one coin. With 100 coins we buy 100 of them. How many roosters, hens, and chicks can we buy?"

Hint: Chicks have to be bought in multiples of 3. There are 4 different possibilities.

I won't post the answer until someone answers since last time it didn't work so well

One possibility:

25 hens (75 coins)
75 chicks (25 coins)

 

[m8875]

Yup, that's probably the easiest one to come up with w/o doing actual math.

P.S. This question's from my linear algebra class so we had to use matrices...

 

[Charles]

I would assume you'd need to buy one of at least all 3? Yeah?

If so, how bout:
8 roosters - 40 coins
11 hens - 33 coins
27 chicks - 81 coins

 

[south-of-france]

"A rooster is worth five coins, a hen three coins, and 3 chicks one coin. With 100 coins we buy 100 of them. How many roosters, hens, and chicks can we buy?"

Hint: Chicks have to be bought in multiples of 3. There are 4 different possibilities.

I won't post the answer until someone answers since last time it didn't work so well

Umm I refuse to take part in a gender discriminating thing why is a hen worth less? That's what I would write if I had to do this in school. Hehe

 

[Charles]

I would assume you'd need to buy one of at least all 3? Yeah?

If so, how bout:
8 roosters - 40 coins
11 hens - 33 coins
27 chicks - 81 coins

Wait..that didn't work out right. Duh!

I had it all figured out, typed the wrong answer, then threw away my work.

Let me write this out again.. I feel like a dumbass!!

 

[Pippi]

Umm I refuse to take part in a gender discriminating thing why is a hen worth less? That's what I would write if I had to do this in school. Hehe

If anything, it should be the other way around, since hens are not only food in themselves, but also lay eggs. Roosters just make a lot of noise!

 

[Pippi]

OK, how about:

4 roosters - 20 coins
18 hens - 54 coins
78 chicks - 26 coins
------------------------
78 26
18 54
+4 +20
-----------------------
100 100

 

[cascratchfever]

I took linear algebra but I can't remember a thing about it! Matrices have proven useless to me in the real world so my brain seems to have tossed out any knowledge of them I do remember liking that class though!

 

[m8875]

I would assume you'd need to buy one of at least all 3? Yeah?

If so, how bout:
8 roosters - 40 coins
11 hens - 33 coins
27 chicks - 81 coins

Nope, the number of animals you buy must add up to 100.

 

[m8875]

OK, how about:

4 roosters - 20 coins
18 hens - 54 coins
78 chicks - 26 coins
------------------------
78 26
18 54
+4 +20
-----------------------
100 100

Correct...just 2 more ... !

 

[m8875]

I would assume you'd need to buy one of at least all 3? Yeah?

If so, how bout:
8 roosters - 40 coins
11 hens - 33 coins
27 chicks - 81 coins

Nope you don't need to buy all 3!

 

[m8875]

Umm I refuse to take part in a gender discriminating thing why is a hen worth less? That's what I would write if I had to do this in school. Hehe

Haha!

 

[m8875]

I took linear algebra but I can't remember a thing about it! Matrices have proven useless to me in the real world so my brain seems to have tossed out any knowledge of them I do remember liking that class though!

Yeah I think courses that we have to take simply allow our brains to be twisted before the real world!

 

[rosieroseanna]

Not even going to attempt it!