Math Contest!

cat • 27 May 2013 at 3:49 PM

Hello, Eggcave! I noticed that I need quite a bit of help in a lot of extra credit math problems in my class. I am trying to boost my grades up, so I need to do some extra credit. However, most of it is stuff that I haven't yet learned.

So, I decided that I would do a math contest. The prize if 150k and 10 travels that I have (your choice).

I will post the math problems in a second. First person to PM me with the answers wins!

Please write out how you solved it 😊

Also, send each question when you get them done. Don't send all of the answers at once.


1. What is the difference between the two largest prime factors of 159, 137?

2. How many of the following are rational numbers?

-25.6, 93/2, 3{square root}-5, 70, {square root}121, 33/2, {square root}122

3. In how many distinct arrangements of the letters of the word APPLY does the A occupy the middle position?

4. At a women's doubles tennis tournament, there were three teams of two women. After the tournament, each woman shook hands once with each player except her partner. What is the amount of handshakes that occurred?

scream • 28 May 2013 at 10:17 AM

@cat Oo, sounds fun 😊 Might join later.

horses4eva • 28 May 2013 at 10:23 AM

I would love 150K and 10 travels but I'm hopeless at maths too ☹️

smitten • 28 May 2013 at 1:10 PM

@cat Sent you 4 PMs xD

emma1897 • 28 May 2013 at 7:40 PM

@cat

the highest prime factor of 159 i can find is 3 ( 3 cant be divided in to anything but it self and it goes in to 159 evenly) and prime factor for 137 is 137 it is a prime itself so 137-3=134

karamel • 29 May 2013 at 8:56 AM

@cat Sent you answers yesterday. 😸

@emma1897 cat asked you to PM her the answers. 😉

emma1897 • 29 May 2013 at 4:24 PM

@karamel

privet message=pm right?

karamel • 30 May 2013 at 10:06 AM

@emma1897 Yep, I gave you the link to PMing cat.