ShoutBox (Part 1)

Jobs & Careers
24925
@rachit_28 said:
Some amount was lent on 6% per annum simple interest. After one year, Rs.6800 is repaid and the rest of the amount is repaid at 5% per annum. If the second year's interest is 11/20 of the first year's interest, find what amount of money was lent out.
a) 17000
b) 16800
c) 16500
d) 17500
e) None of these
17000
24926
@saniyamakhijani said:
Ho hi nahi sakta voh isiliye toh..
Simple Interest means jab interest pe interest nahi lagta, bas yahi, ideally question main diya hona chahiye, CAT waale denge agar aise koi question aayega, idhar question main yeh bhi nahi tha ki woh paisa kab pay kar raha hai,
@YouMadFellow 's sources needs to be blamed, aap bekaar ke tensions le rahe ho.
http://www.pagalguy.com/forums/cat-and-related-bschools/official-cat-2012-16-oc-t-87988/p-3609354?page=7
Aap log ye question dekh lo ritu ne jo paste kara hai 4 variable Venn Diagram, shayad important hai, if rumor mills are to be believed.
24927
@hanushanand said:
wow epic info!!
24928
@YouMadFellow said:
FINAL SOLUTION (JANHIT ME JAARI)
Total Amount to be given after three years = 12820 Rs
Here, the question says starting first year -> THIS WAS MY ORIGINAL DOUBT, but it seems logo ne kuch aur hi kar diya ..
Case 1: Starting 1st year means I start paying now
x*(1.1)^3 + (2x)*(1.1)^2 + (3x)*(1.1) = 12820
-> x*[7.051] = 12820 => x = 1818.2 Rs.. = 1800 approx...
Case 2: Starting 1st year means I start paying after one year
x*(1.1)^2 + (2x)*(1.1) + (3x) = 12820
-> x*[6.41] = 12820 => x = 2000 Rs
Original source had : starting after 1st year
I am sorry that itna confusion create hogaya yahan
starting first year me confusion kyu tha? i did not understand the first case :/ i mean loan lete hi how can u pay back! jab 1 year ho jayega tab hi to interest lagega na?
24929

Something funny that just occurred to me...


My most commonly thought sentence during my CAT section 1 was, "What fresh hell is this now!"

Funny in hindsight. :P
24931
@aimingCAT12 said:
starting first year me confusion kyu tha? i did not understand the first case :/ i mean loan lete hi how can u pay back! jab 1 year ho jayega tab hi to interest lagega na?
the question doesn't say ki koi loan hai, all he needs is to pay back 12820 in full amount after 3 years, maths ye sab explicitly likhna chahiye, aap jab first year MBA ka course karoge aapka ye saara confusion khatam ho jayega.
24932
@karl said:
the question doesn't say ki koi loan hai, all he needs is to pay back 12820 in full amount after 3 years, maths ye sab explicitly likhna chahiye, aap jab first year MBA ka course karoge aapka ye saara confusion khatam ho jayega.
24933

Bhai log ek WTF ques lo:

The expression x^4 + 2px^3 + x^2 +2px + 1 = 0 has at least two distinct negative roots if:

1. p2.p=0
3.p>3/4
4.p belongs to (-1/2,1/2)


24934
@Ibanez said:
17000
Yeh kaise kiya bata do ? :splat: .. I am weak in dealing WITH money :)
24936
@YouMadFellow said:
Yeh kaise kiya bata do ? .. I am weak in dealing WITH money
Isme SI hai,

Amount after one year= 1.06P . He repaid 6800, so our new principal for 2nd year will be
1.06P-6800 .
Interest on this at 5%pa for the 2nd year= (1.06P-6800)*5/100
Interest of first year is 6P/100.

ATQ,
(1.06P-6800)*5/100 = 11/20 * 6P/100
solving we get P=17,000
24938
@karl said:

4 variable Venn Diagram, shayad important hai, if rumor mills are to be believed.
24939
@Ibanez said:
Isme SI hai,Amount after one year= 1.06P . He repaid 6800, so our new principal for 2nd year will be 1.06P-6800 . Interest on this at 5%pa for the 2nd year= (1.06P-6800)*5/100 Interest of first year is 6P/100.ATQ, (1.06P-6800)*5/100 = 11/20 * 6P/100 solving we get P=17,000
Maine jab YEHI solve kiya to answer kyu nahi aaya :banghead: .. Par wo to repay 5% pe kar raha hai naa.. bank ka interest ko 6% hi hai naa ?
24940
A wine bottle contains 30 litres of pure wine. 10 litres of it is replaced with 20 litres of water. Then 10 litres of the resulting solution is again replaced with 20 litres of water. What is the volume of pure wine (in litres) in the container after eight such operations?
(a) 273/40
(b) 5
(c) 273/35
(d) 6

mujhe isko karne mein bahot time laga, help me with the approach....
24941
@YouMadFellow said:
Maine jab YEHI solve kiya to answer kyu nahi aaya .. Par wo to repay 5% pe kar raha hai naa.. bank ka interest ko 6% hi hai naa ?
5% hi hai. Ques states that "after he repaid 6800, he pays the rest of the amount at 5% pa".
Toh 1.06P-6800
24942
@rachit_28 said:
Then 10 litres of the resulting solution is again replaced with 20 litres of water. What is the volume of pure wine (in litres) in the container after eight such operations?
(a) 273/40
(b) 5
(c) 273/35
(d) 6
mujhe isko karne mein bahot time laga, help me with the approach....
Ques incomplte hai kya? resulting solution from wat?
24943
@Ibanez said:
Ques incomplte hai kya? resulting solution from wat?
Really sorry, please check again...
24944


24946
@Adiiiii said:
In a Blind Dating event, the participants
comprise 'm' guys and 'n' girls (m > n). Each
of the m guys gets to spend exactly 4 minutes
with each of the n girls (any excess unpaired
guys during any round await their turn). At
the end of the event, each female has to submit
a list of the males that she would like to meet
again (which could even be all of the males,
or none of them).
In how many different ways could the final lists
be made by the girls?
1) mn 2) nm+1
3) 2^mn 4) (m+1)n
3) 2^mn ?

Trying to think in terms of a girl .. I can either select a boy or reject him !
So, 2^m ...
For n girls, 2^m * 2^m.. ... n times = 2^mn times..

I may be terribly wrong :splat:
24947
@Adiiiii said:
In a Blind Dating event, the participants
comprise 'm' guys and 'n' girls (m > n). Each
of the m guys gets to spend exactly 4 minutes
with each of the n girls (any excess unpaired
guys during any round await their turn). At
the end of the event, each female has to submit
a list of the males that she would like to meet
again (which could even be all of the males,
or none of them).
In how many different ways could the final lists
be made by the girls?
1) mn 2) nm+1
3) 2^mn 4) (m+1)n
(m+1)n ???

24949