The PaGaLGuY UnderDogs Team 2012

@naarto said:
now that you guys had fun racking your brains over the seating arrangement, as an ex member, i take privilege of posting a question.
There are 16 people ready to hog. In how many ways can they be seated.
Arey kuch toh details do...kahan bithana h...kyu bithana h...kaise bithana h...baith ke kya karenge...kis cheez pe karen...kuch toh batao...
@nits2811 said:
Arey kuch toh details do...kahan bithana h...kyu bithana h...kaise bithana h...baith ke kya karenge...kis cheez pe karen...kuch toh batao...
A better picture:


@naarto said:
A better picture:
Arey sir kya google faik di...chain se nhi rehne doge kya..chalo dimag peet ta huun...thodi der mein deta huun answer...
@allan89 OA de do us passage ka with explanations....lagta hai koi aur nhi attempt karega itna phaad passage..!!
@naarto said:
A better picture:
4 * 15!...galat mat bolna...baada soch samaj ke answer dia h..
@nits2811 said:
4 * 15!...galat mat bolna...baada soch samaj ke answer dia h..
bingo! correct 😃 congratulations ;)
@naarto said:
bingo! correct congratulations
hehe...yeh yeh..dhanyavaad
@nits2811 said:
hehe...yeh yeh..dhanyavaad
bada soch samajhkar kiya na. aise hi karna ismei. ;).very dicey options can be given too :)
@naarto said:
bada soch samajhkar kiya na. aise hi karna ismei. .very dicey options can be given too
yes i kno...aise questions are better done widout seeing the options...
@nits2811 said:
4 * 15!...galat mat bolna...baada soch samaj ke answer dia h..
Yr wat was ur explnation fr this one...as in acc to me: the frst person will have four places to select from and rest of the 15 people will b arrranged acc (i.e. the person will b treated as the ref pt fr other)..Is this correct??
@nits2811 said:
4 * 15!...galat mat bolna...baada soch samaj ke answer dia h..
Yr wat was ur explnation fr this one...as in acc to me: the frst person will have four places to select from and rest of the 15 people will b arrranged acc (i.e. the person will b treated as the ref pt fr other)..Is this correct??

Hello ,


Can anybody please mail CL mocks to me.
Do we have any google group then please add me there.



Thanks

@amitshanky said:
Hello ,
Can anybody please mail CL mocks to me.
Do we have any google group then please add me there.
Thanks
Thanks , I got it but please add me in google group. -:)

ek accha Q dikha Quant thread se copy paste kar rha hai.... widout options...


What is the sum of all positive rationals p/30 (in lowest terms) which are less than 10?

@abhi_14 said:
Yr wat was ur explnation fr this one...as in acc to me: the frst person will have four places to select from and rest of the 15 people will b arrranged acc (i.e. the person will b treated as the ref pt fr other)..Is this correct??
yess kind off...what i did was...i placed A at one of the positions...then i rotated the diagram again and again to find out the number of symmetries it has...
@pratskool said:
ek accha Q dikha Quant thread se copy paste kar rha hai.... widout options...
What is the sum of all positive rationals p/30 (in lowest terms) which are less than 10?
My approach...as p shld b less than 300 and not divisible by 2 or 3 or 5...so now v are left with only odd nos...the sum ryte now is 22500...
Next subtract those nos divisible by 3 and not 2...
3, 9, 15...297
50*300/2=7500
Next subtract those nos divisble by 5 but not by 3 and 2...
5, 25, 35, 55, 65, 85,95....265,275,295
10*280/2 = 1400 + 10*320/2 = 1600
So 22500 - 7500-3000 = 12000
So the sum of values of p is 12k..
the sum of p/30 wld be 12000/30 = 400
@pratskool said:
ek accha Q dikha Quant thread se copy paste kar rha hai.... widout options...
What is the sum of all positive rationals p/30 (in lowest terms) which are less than 10?
E (300) = 300 * 1/2 *2/3 *4/5 = 80

SUM OF all co primes = 300/2 *80 = 12000

sum of all rationals p/30 = 12000/30 =400
@allan89 said:
E (300) = 300 * 1/2 *2/3 *4/5 = 80
SUM OF all co primes = 300/2 *80 = 12000
sum of all rationals p/30 = 12000/30 =400
Oh damn..bhul gya tha aise bhi kar sakte h isse...need to start revising now...wld hv wasted roughly 2 extra mins...waarna ans 30 sec mein aa jaata iss method se...
@nits2811 said:
Oh damn..bhul gya tha aise bhi kar sakte h isse...need to start revising now...wld hv wasted roughly 2 extra mins...waarna ans 30 sec mein aa jaata iss method se...
bina revise kiye hi 70 + phod to rahe ho ... aur kya zarurat ??
@allan89 said:
E (300) = 300 * 1/2 *2/3 *4/5 = 80
SUM OF all co primes = 300/2 *80 = 12000
sum of all rationals p/30 = 12000/30 =400
allan bhai didnt get what exactly we are finding


are we finding sum of 1/30 +2/30...............................299/30 as all these fractions are less than 10

and of the form p/30

what exactly are finding
i got your method till finding no. of coprimes of 300 and then summing it but didnt get 12000/30 concept????


please explain