- View Sourcehey pallavi,ssup' ...lisn, al dese probs r quite simple...u jus have to use sum basic rules.solutions:

1) ans is (b)a perfect square can neva end in 2,3,7 and 82) i dint get ure Q...as in em not actualy clear bout d Q3) u can solve dis sum by takin few eg.square of a no. grater den 1000say for eg: 1001find the square of 1001 wid the formula (1000+1)^2ie 1000000+2000+1= 1002001test for divisibility for 3 is: sum of the digits of the no. shud b divisible by 3( for eg: 453 : sum of digits is 12. therefore, the no. is divisible by 3and to find the remainder, divide the sum by 3for eg: 454 : sum of digits is 13, the no. is not divisible by 3 n d remaider is 1...( divide 13 by 3)here, is dis sum : sum of digits os 1002001 is 4 , so the remainder is 1next, square of 1002 is 1004004 and dis no. is divisible by 3square of 1003 is 1006009, it is not divisible by 3 and remainder is 1.... so on n so forth..so the ans is option (a) 1 always4) u get the upper limit for x+y wen d value for x and y is maximum which is 4 and 3 resp in dis case and the lower limit for x-y is wen d value for x and y is d lowest, which is 2 and 1 resp in dis case.therefore, x+y/x-y = 4+3/2-1=7/1=7which is ans option (b) 75)wrote:*pallavi aggarwal <pal_agg2003@...>*- which of the following is not a perfect square?

a) 1,00,856 b) 3,25,137 c) 9,45,729 d) all of these- some birds settled on the branches of a tree. Ffirst, they sat one to a branch and there was one bird too many. Next they sat two to a branch and there was one branch too many. How many branches were there?

a) 3 b) 4 c) 5 d) 6- the square of a number greater than 1000 that is not divisible by 3, wen divided by 3, leaves a remainder of

a) 1 always b) 2 always c) either 1 or 2 d)cant be said- if 2<x<4 and 1<y<3, then find the ratio of the upper limit for x+y and the lower limit of x-y

a) 6 b) 7 c) 8 d) none of theseplease explain all answers with proper methods

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Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls. Great rates starting at 1¢/min. - View SourceQ1> Ans is (d) and not (b).......all of the given is not a perfect

square.

q4> i think ans is (d) -- none of these

Here u have to consider that x,y have a common domain (2,3), and so

if x=y in this domain, then x-y=0, also x-y can be nagative.....so

lower limit of x-y cannot be said so easily.......and neighter the

ratio.

Abhishek

--- In ascent4cat@yahoogroups.com, aarti jain <aartirjain@...> wrote:

>

> hey pallavi,

> ssup' ...lisn, al dese probs r quite simple...u jus have to use

sum basic rules.

> solutions:

>

> 1) ans is (b)

> a perfect square can neva end in 2,3,7 and 8

>

> 2) i dint get ure Q...as in em not actualy clear bout d Q

>

> 3) u can solve dis sum by takin few eg.

> square of a no. grater den 1000

> say for eg: 1001

> find the square of 1001 wid the formula (1000+1)^2

> ie 1000000+2000+1= 1002001

> test for divisibility for 3 is: sum of the digits of the no.

shud b divisible by 3

> ( for eg: 453 : sum of digits is 12. therefore, the no. is

divisible by 3

> and to find the remainder, divide the sum by 3

> for eg: 454 : sum of digits is 13, the no. is not divisible by 3

n d remaider is 1...( divide 13 by 3)

> here, is dis sum : sum of digits os 1002001 is 4 , so the

remainder is 1

> next, square of 1002 is 1004004 and dis no. is divisible by 3

> square of 1003 is 1006009, it is not divisible by 3 and

remainder is 1.... so on n so forth..

> so the ans is option (a) 1 always

>

> 4) u get the upper limit for x+y wen d value for x and y is

maximum which is 4 and 3 resp in dis case and the lower limit for x-

y is wen d value for x and y is d lowest, which is 2 and 1 resp in

dis case.

> therefore, x+y/x-y = 4+3/2-1

> =7/1

> =7

> which is ans option (b) 7

>

> 5)

> pallavi aggarwal <pal_agg2003@...> wrote:

>

> which of the following is not a perfect square?

>

> a) 1,00,856 b) 3,25,137 c) 9,45,729

d) all of these

>

>

>

> some birds settled on the branches of a tree. Ffirst, they sat

one to a branch and there was one bird too many. Next they sat two

to a branch and there was one branch too many. How many branches

were there?

>

> a) 3 b) 4 c) 5 d) 6

>

>

> the square of a number greater than 1000 that is not divisible

by 3, wen divided by 3, leaves a remainder of

>

> a) 1 always b) 2 always c) either 1 or

2 d)cant be said

>

>

>

> if 2<x<4 and 1<y<3, then find the ratio of the upper limit for

x+y and the lower limit of x-y

>

> a) 6 b) 7 c) 8 d) none of these

>

>

>

> please explain all answers with proper methods

>

>

>

> ---------------------------------

> Yahoo! India Answers: Share what you know. Learn something new

Click here

> Catch all the FIFA World Cup 2006 action on Yahoo! India Click

here

>

>

>

>

> ---------------------------------

> Talk is cheap. Use Yahoo! Messenger to make PC-to-Phone calls.

Great rates starting at 1¢/min.

>