Some more powerprep problems

[Mervin2008]

For the second one I know its been posted before but I would appreciate if someone could point out that thread to me or explain it to me,I am not able to find it




not sure why the image is not coming...

[mickgreen58]

I am a bit short on time, so I did not look at the second picture.

For the first picture:

1) Look at the picture

2) Draw a dotted line from the 125 all the way down to the opposite angle that is also 125 (opposite angles are equal in a Parellelogram) and you have the side that is the height.

3) Now, from what we know about Triangles, we know the side opposite the Hypotenuse is the biggest side correct? So that line you drew that gives you your height has to be less than 6 (therefore less than 24), does this make sense?

[Mervin2008]

I am a bit short on time, so I did not look at the second picture.

For the first picture:

1) Look at the picture

2) Draw a dotted line from the 125 all the way down to the opposite angle that is also 125 (opposite angles are equal in a Parellelogram) and you have the side that is the height.

3) Now, from what we know about Triangles, we know the side opposite the Hypotenuse is the biggest side correct? So that line you drew that gives you your height has to be less than 6 (therefore less than 24), does this make sense?

Sorry I am still not able to comprehend what you said ,how does the diagonal become the height ?

[skawal]

for the first problem the area of a parralleogram=base*height.since base is 4 and the height should be less than 6.so the area is also should be less than 24.so the ans is B.

for the second problem
let R=rapsberry,S=straberry,B=blueberry and
x=both R and B,y=both R and S,z=both B and S
x+y+9+40=87,or,x+y=38......(1)
x+z+12+40=91,or,x+z=39.....(2)
y+z+10+40=91,or,y+z=41......(3)

solving equations we get, z=21 that means the number of people surveyed both blueberry and straberry.

[skawal]

hi mervin,
where is the third problem?

[mickgreen58]

[Mervin2008]

Thanks skawal,that explains it really well

Thanks for the diagram Mick ,now I am able to visualize it well

[skawal]

hey mick,i have a query about snagit software.when the trial time has gone i again download it from the internet and try to install it,though the software is installed but it doesnt work.i dont know where is the problem.but i badly need it.please gimme some tips about it.

[mickgreen58]

hey mick,i have a query about snagit software.when the trial time has gone i again download it from the internet and try to install it,though the software is installed but it doesnt work.i dont know where is the problem.but i badly need it.please gimme some tips about it.

I did not use Snagit, I used Adobe Photoshop. However, I will be sending you a PM.