sumasajja

If x - 2y = -1 and 3x - 4y = 3 what is the point between these two lines? A. (1, 0) B. (0, -1) C. (0, 0) D. (2, -1) E. (2, 1)

got the concept.now i understood.That is when you are drawing r horizontal lines and (r+1) vertical lines. But, in this case, we are given that the squares are placed in r rows and (r+1) columns. So, it will be r(r+1) squares.

i am totally confused ...my previous knowledge tells me that 11 rows and 12 columns will have a total of (11-1)*(12-1) squares i.e 110 .but ur answer is absolutely correct megamind.i cant bridge the answer to the solution i did.

(90/100)* (83.3/100) *total candy = 9 =(9/10)*(833/1000)*total candy=9 9 gets cancelled on both sides (833/10000)*total candy=1 total candy=(10000/833) =12.3 (you can assume total candy as 'x' here )

i think 11 rows and 12 columns will have a total of (11-1)*(12-1) squares i.e 110

i thought u people knew that !!!!! check ur software ,if u dont find ....aything new(exam) , i will save it for u n post that in this forum ,,,,,it consits of 1 ,20 question exam in extra thats it!!!

ya,,u are right.the software is weird. at first i did't understand........then i tried 2 click many times .....the same software ...at --take new test button,,n was surprised 2 find that the test which appeared was differet from the one i took before.. (the same is with the powerprep 3.1 version) u can hardly understand the software

Julie gives 16.7% of her candy to John ,that means she has = (100-16.7)% = (83.3/100) of the candy ,remaining then Julie gives 10% of her remaining candy to Sally,that means the candy remaining with her is (100-10)% of (83.3/100)of candy=(90/100)* (83.3/100) *total candy = 9 -->(10000/833) =12.3 since candy is not measured as fraction, remove the decimal part and the answer is 12 note: here "Sally gives Peter 30% of her candy" is irrelevant information to consider so leave that

rs.aggrawal is truly a wonderful book.it can give u a very good start. coz the problems in it are cogently explained but at the end of the day , its all about practising as many problems u can from standadized gre books in the market .do solve the powerprep prob. by downloading it from ets website. even official guide is good

these questions made me think for a few minutes. any idea on these problems, members here u go!!

oops,,,,,,PS above means point :)

@megamind go through this doc....it contains the same question u asked a day before in the forum.i thought that the question u posted is a right angled triangle as u came up with that conclusion ...............today i saw the same question and i realized that the question is not about any right angled triagle ,,,,,but it says ,,,,,some point s which is not on the line ,,,,,which means that it is not in straight line with PQR where PQ=QR=SQ,,,,, since the comparision is btw PR and PS ,,,,,,,,,,IMAGINE TO EXTEND PS IN SPACE MAITAINING QS LENGTH SAME ................AND IT WLL BE ALWAYS SMALL THAN PR so aswer is a

they have told in the problem, must have at least one -2........that means that -2 is compulsory for which number given below............( u can take for the context i question) ,for any number below -30 u need compulsorily a -2 . so it is -26 ad answer is the second option.

sorry ..guys it was a mistake ..i unintentionally sent another doc, and this is the correct one. the answer i gave for the 1st one in this thread correlates this doc.....so please refer

1.since mean when x=20 is 20.so standard dev. is the least .