ShoutBox (Part 1)

@hanushanand said:
Arey.. sirjee.. saare 4 digits pe Prob loge naa.. Distinct wale pe thodena loge! Ye kaisa shadyantra hai
Kyun ?? Question said - Find the probability of 4 digit numbers having distinct digits being divisible by 11. So, distinct pe hi toh niklega probability !! :splat:
@Estallar12 said:
Different nahin honge kya yeh ?
Main to different maan raha hu.. mujhe us 15 people in picnic wale ka answer batao..
Maine to seedha seedha 15! kar diya..
@hanushanand said:
arey.. sirjee.. agle quarter me uski mummy ne 25k rokda aur diya naa.. uska bhi to interest nikaalo!
😞 btana meko CI n installament mei hamesha locha hota hai
@YouMadFellow said:
Ek baar yeh dekho.. do you consider these two cases as different or same in this question ?
Arey.. Sirjee.. Ye JEE ka question nhi hai!! Basically.. here we are not talking abt Realtive Placements.. but just the distribution.. ab wo dono groups alag alag kamre me bhi to baith sakte hai.. So basically.. we just need to selct 7 people.. rest 8 will be selected themselves.. and then place both of them by (n-1)! ..

I guess, this can be correct explanation.. as far as my answer is correct! Koi answer to batao.. Khaali hawa me teer mar rhe hai sab!
@YouMadFellow said:
Main to different maan raha hu.. mujhe us 15 people in picnic wale ka answer batao..
Maine to seedha seedha 15! kar diya..
Maine (8+7)!/8*7 kiya.
Selecting 7 out of 15 and then arranging both groups :splat:
@Brooklyn said:
btana meko CI n installament mei hamesha locha hota hai
Dekho main simplify kar deta hu.. uske account me 25000 rupaye rahe 1 saal ke liye
25000 rupaye rahe 9 months ke liye
25000 rupaye rahe 6 months ke liye
aur 25000 rupaye rahe 3 months ke liye

Ab Amount on each = P*( 1+ r/100*k) ^ nk where r is annual rate , n is number of years.. k is the division of each year..

In our case k = 4 in our case, because we want the quarterly interest

So, put this formula.. and use the first term of the binomial expansion, you will get 105000
@hanushanand said:
Arey.. Sirjee.. Ye JEE ka question nhi hai!! Basically.. here we are not talking abt Realtive Placements.. but just the distribution.. ab wo dono groups alag alag kamre me bhi to baith sakte hai.. So basically.. we just need to selct 7 people.. rest 8 will be selected themselves.. and then place both of them by (n-1)! ..I guess, this can be correct explanation.. as far as my answer is correct! Koi answer to batao.. Khaali hawa me teer mar rhe hai sab!
Haan. Wahi main bola. 15C7*6!*7! = 15!/8*7

Generalise karo toh - (m+n)!/m*n :P
@Estallar12 said:
Kyun ?? Question said - Find the probability of 4 digit numbers having distinct digits being divisible by 11. So, distinct pe hi toh niklega probability !!
My point: Here, the Favorable condition is being distinct integers.. but I guess prob should be found on all 4-Digit nos.. I guess.. It must be specified in the Question! Ye wala clear nhi hai! Leave it.. anyways.. Cases to aa hi gye hai! I better check with mine!
@YouMadFellow said:
Dekho main simplify kar deta hu.. uske account me 25000 rupaye rahe 1 saal ke liye
25000 rupaye rahe 9 months ke liye
25000 rupaye rahe 6 months ke liye

I hate formula approaches from the very slender slices of my existence. :P
@Estallar12 said:
Maine (8+7)!/8*7 kiya.
Selecting 7 out of 15 and then arranging both groups
@hanushanand said:
Arey.. Sirjee.. Ye JEE ka question nhi hai!! Basically.. here we are not talking abt Realtive Placements.. but just the distribution.. ab wo dono groups alag alag kamre me bhi to baith sakte hai.. So basically.. we just need to selct 7 people.. rest 8 will be selected themselves.. and then place both of them by (n-1)! ..I guess, this can be correct explanation.. as far as my answer is correct! Koi answer to batao.. Khaali hawa me teer mar rhe hai sab!
Dekho, obv mera pehla answer is (15!/7!*8!) * 6!*7! .. par maine yahan food for thought diya hai.. ki what will happen in such a case, where the two circles are nearby.. tab kya hoga.. ?

Tab har circle me normally jo (n-1)! hota hai.. wo apply hoga ya nahi ? Kyunki har ek position matters.. A and D in one case were not nearby, dusre me hai .. but dekha jaye to pehle circle ke ABC ka orientation same hai.. -> for the first circle, this is a redundant case..
chalo bhai log gym tym!! meet guys after 2 hrz approx.... would give me a break to refresh :)
aake phodta hu 😁
@Estallar12 said:
Haan. Wahi main bola. 15C7*6!*7! = 15!/8*7
Generalise karo toh - (m+n)!/m*n
Haan sirjee.. Generalised.. main to bas Soham sirjee ke mann ki uttidna ko extinguish karne k koshish rha tha!

koi mujhe ye batao ki agar annual ci rate de rkha hai aur 6 months ka interest nikalna hai toh is it rite to take n=0.5 ... ??

isis tarah 1 month ka n=1/12 and so on

@hanushanand said:
My point: Here, the Favorable condition is being distinct integers.. but I guess prob should be found on all 4-Digit nos.. I guess.. It must be specified in the Question! Ye wala clear nhi hai! Leave it.. anyways.. Cases to aa hi gye hai! I better check with mine!
Here, if the favourable condition will be being distinct integers, then probability main divisibility by 11 nahin lag paega.

See, it could be done 2 ways. Ya toh distinct digits waale numbers pe nikaalo or do it using Conditional Probability if total possible numbers pe nikaalna hai toh.
@YouMadFellow said:
Dekho, obv mera pehla answer is (15!/7!*8!) * 6!*7! .. par maine yahan food for thought diya hai.. ki what will happen in such a case, where the two circles are nearby.. tab kya hoga.. ?
Tab har circle me normally jo (n-1)! hota hai.. wo apply hoga ya nahi ? Kyunki har ek position matters.. A and D in one case were not nearby, dusre me hai .. but dekha jaye to pehle circle ke ABC ka orientation same hai.. -> for the first circle, this is a redundant case..
ye itna bawal hai kispe ???
@Brooklyn said:
ye itna bawal hai kispe ???
Picnic wala sawaal tha naa.. uspe ...
@YouMadFellow said:
Dekho, obv mera pehla answer is (15!/7!*8!) * 6!*7! .. par maine yahan food for thought diya hai.. ki what will happen in such a case, where the two circles are nearby.. tab kya hoga.. ?
Tab har circle me normally jo (n-1)! hota hai.. wo apply hoga ya nahi ? Kyunki har ek position matters.. A and D in one case were not nearby, dusre me hai .. but dekha jaye to pehle circle ke ABC ka orientation same hai.. -> for the first circle, this is a redundant case..
haan agar.. Keval Distribution naa karna ho.. and Placements bhi dekhne ho.. to obv answer wud be totally different.. Wo to Deep Thought dena padega! hum aapki tarah BOND nhi hoon!
@YouMadFellow said:
Picnic wala sawaal tha naa.. uspe ...
fianlly wats d solution n apporach accepted by all ??
@hanushanand said:
Haan sirjee.. Generalised.. main to bas Soham sirjee ke mann ki uttidna ko extinguish karne k koshish rha tha!
Soham Sirjee kaun hai ? 😲 :O