http://i158.photobucket.com/albums/t120/brinazarski2/photo-8.jpg

In the figure above, if two points S and T are to be placed on the line l on opposite sides of point P so that 2SP = PT, what will be the value of ST/PT? I know the answer is 3/2, but why?

Question

http://i158.photobucket.com/albums/t120/brinazarski2/photo-8.jpg

In the figure above, if two points S and T are to be placed on the line l on opposite sides of point P so that 2SP = PT, what will be the value of ST/PT? I know the answer is 3/2, but why?

aripotta · Answer

ST = SP + PT, yes?

aripotta · Answer

SP = 1
PT = 2

so, ST = 1 + 2
ST = 3

aripotta · Answer

ST/PT = 3/2

brinazarski · Answer

Yup

aripotta · Answer

does that make sense? :)

brinazarski · Answer

Oh wow... I misread the question. Thank you! :)

brinazarski · Answer

Yeah, I thought the question was asking for SP/PT -.-; Opps heheh

aripotta · Answer

oh! you should reread the questions :) i misread all the time, so reading it again would help a lot