hey he fourth one can be solved this way too
The angles of the triangle will be y , x, 180-z and we know that sum of the angles of a triangle is 180
Here
y + x + 180-z = 180
hence y=z-x

hey think Don understands all of this ..
jus posts 'em o find a different way of solving

and so tht we keep on trying to find the solns...neway,i don't mind it...keeps ya on ur toes..rite,wat say,Don,khufu :

catathon

hey all tht's perfectly 'kay with me khufu..:P
neway,gotta see tht coordinate soln..what a relief :!:
cya around...

catathon

Catathon.....i too agree with u pal.....i wud have gone u'r ay in an actual exam...but then just gave another way of solving it....so that it cud be easier for DON to understand

Hi Don...

thnx fer tht bit of advice 'ahem'..

neways,my xplanation fer the 3rd's here again:

in the pts the one where both the vals r known,we can find the relation b/w x & y so 3,2 => y=x*2/3
so unknown y=4.8*2/3 = 3.2
yep,the "rite" thin to do wd b going the khufu4u way...but me bein the nutcase tht i am go fer xtremely short short-cuts..however unmathematical they r :!:

hope i cd get the xpln across..:angel:

catathon

Ya am lookin forward for the same DON.......
nyways 4th qn's soln. goes on as.....was just a guess :wink:
Hey let's consider z to be 90 degrees, if x too is 90..then the two lines have to be parallel... or coinciding with one another. now let's take x as say 60 degrees. so the angle opposite to x, within the triangle is also 60 degrees....and hence y=180-90-60=30 degrees.
takin into account the values we get the relation y=z-x :wink:
there's another way also of solving the problem but that might be a bit confusing.....coz it plays around with all the angles around the lines.I guess this is a more explanatory answer. anyways get back in case of any doubts!!!

hey thx khufu!! understood 3rd one too! yep 4th oneis C!!

ans for all 4...
(1) D
(2) C
(3) B
(4) C

xplain 4th also! ;)

and ye i now know abt khufu...read abt THE king khufu in India today and the mysteries of that pyramid is being unravelled this tuesday( sept 17) in NGC at 5.30 p.m!!

oh ye first one understood

second one u know!!!
Third one u can also solve using slopes concept:-
(y2-y1)/x2-x1)...is the equation of the line passing thru two points...but in this case one of the points being the origin, we have
(2-0)/(3-0)=(y-0)/(4.8-0)=>y=(2/3)*4.8=3.2
and 4th one i guess is (C)-->y=z-x
do get back to me in case that's the right choice.

oh ye first one understood

hey the ans that u gave for 1,2 and 3 are rt!! but the xplanations wer ambiguous...

and hey leave a space between ur name and the twisted smiley...so that v see the smiley instead of it's name

hi Don,

the answers as I see 'em r :

1)D-96*2=192 is filled so fer 64- 192-64=128 has to be emptied...so 128/96=4/3

2)C-well,from what u said on this one in ur post..guess u know it n i'll turn outta be wrong...so..

3)B-in first pt- 2= 3*2/3 so 2nd one...4.8*2/3=3.2

4)nope,no chance of me getting tht one...!!

catathon