Mathematics Corner :)

[Yanal]

What is x -y if x is h?

 

[Woodrow]

What is x -y if x is h?

h-y

 

[Abdu-l-Majeed]

Hey. ;D

 

[Yanal]

Ahh Grandpa Woody, it was a joke , I think.

 

[chacha_jalebi]

2y x 5y = ?

go on yanal

 

[Yanal]

Well the answer is ....10yy.
Next question: What is c+h+a+c+h+a=

 

[Whatsthepoint]

Well the answer is ....10yy.
Next question: What is c+h+a+c+h+a=

2(a+c+h+e) - 2e

 

[Güven]

got some real math questions ? :hmm:

 

[Whatsthepoint]

got some real math questions ? :hmm:

Here you go nature boy:


Find all prime numbers p if:
p + 28 = prime
p + 56 = prime

 

[Whatsthepoint]

Here you go nature boy:


Find all prime numbers p if:
p + 28 = prime
p + 56 = prime

Nobody?

 

[Cabdullahi]

the question seems unclear,do we have to find out what p is? but then you say find all prime numbers that would fit in the equation

well the first one

19 + 28 = 47 which is a prime number ? is that how it is im not sure

the second equation
11 + 56 = 67 which is a prime number

 

[Cabdullahi]

ohhh i think you want us to find all the possibilities?? is that correct brother wtp?

 

[Güven]

Ive never seen such a question before , im sorry :exhausted

 

[Whatsthepoint]

ohhh i think you want us to find all the possibilities?? is that correct brother wtp?

You have to find every prime number that fits both equations.
19 + 28 = 47
however
19 + 56 is 75 which is not prime.
so p is not 19.

And you mustn't solve it by trying.

 

[Cabdullahi]

3 + 28 = 31

3 + 56 = 59

 

[Cabdullahi]

61 + 28 = 89

61 + 56 = 117


???

 

[Whatsthepoint]

61 + 28 = 89

61 + 56 = 117


???

Nope, 117 = 39 × 3

 

[Whatsthepoint]

3 + 28 = 31

3 + 56 = 59

Yep, but that was a guess.
Try figuring it out in a mathematical way.

 

[Woodrow]

Yep, but that was a guess.
Try figuring it out in a mathematical way.

I believe the question needs some parameters, otherwise there will be infinite possibilities. No matter what the largest one is, we can never rule out that there is a larger possibility.

 

[Whatsthepoint]

I believe the question needs some parameters, otherwise there will be infinite possibilities. No matter what the largest one is, we can never rule out that there is a larger possibility.

Nope. 3 is the only solution.