Official Quant thread for CAT 2013

kinkong · January 25, 2013, 5:43pm

A vendor bought bananas at 6 for Rs.10 and sold them at 4 for Rs.6.Find his gain or loss percent? Though it's easy,m confused.. please help

raopradeep · January 25, 2013, 5:49pm

@swapnil4ever2u said:
oa is 4160@raopradeep

ok then i am wrong do you have solution ?

hedonistajay · January 25, 2013, 5:50pm

@kinkong said:
A vendor bought bananas at 6 for Rs.10 and sold them at 4 for Rs.6.Find his gain or loss percent? Though it's easy,m confused.. please help

6 for 10 so 24 for 40
4 for 6 so 24 for 36
so there is loss of 4/40 * 100 = 10%

ishu1991 · January 25, 2013, 5:54pm

@bs0409 said:
Post edited, see now.Two quadratic equations's have one common root. co-efficient of x^2 for both is 1. Sum of common root and two other roots of these equations is 3 and product of common root and two other roots is 12. Then common root is:1. 12. -13. -24. 65. 2

-2

kinkong · January 25, 2013, 5:55pm

@hedonistajay thnx man!!!!! thank u so much!!!!

ishu1991 · January 25, 2013, 5:56pm

@kinkong said:
A vendor bought bananas at 6 for Rs.10 and sold them at 4 for Rs.6.Find his gain or loss percent? Though it's easy,m confused.. please help

loss of 10 percent

swapnil4ever2u · January 25, 2013, 5:57pm

@raopradeep said:
ok then i am wrong do you have solution ?

see

reply no 16466

swapnil4ever2u · January 25, 2013, 5:58pm

@hatemonger yes..

swapnil4ever2u · January 25, 2013, 6:00pm

@raopradeep infact you should see @bs0409 's edited solution.. that's much better than actual solution

mohitinfy123 · January 25, 2013, 6:00pm

@kinkong cp(6)=10,cp(1)=10/6,

Sp(4)=6,Sp(1)=6/4,

cp(1)-sp(1)/cp(1)*100=10%loss

hatemonger · January 25, 2013, 6:01pm

@swapnil4ever2u great great carry on....

swapnil4ever2u · January 25, 2013, 6:08pm

@ishu1991 i have provided the solution ..you can see it (reply no 16466)

arnabdutta77 · January 25, 2013, 6:09pm

what is the probability for a randomly chosen time of day that the angle between the long hand and the short hand is a right angle?

P.S. I don't know the answer.

kinkong · January 25, 2013, 6:10pm

@Mohitinfy123 thnx man!

mailtoankit · January 25, 2013, 6:18pm

@kinkong said:
A vendor bought bananas at 6 for Rs.10 and sold them at 4 for Rs.6.Find his gain or loss percent? Though it's easy,m confused.. please help

CP of 6 bananas = 10

so for 1 banana = 10/6 = 5/3

SP of 4 bananas = 6

so for 1 banana = 6 /4 = 3/2

% loss = 5/3 - 3/2/5/3*100 = 10%

logrhythm · January 25, 2013, 6:36pm

@arnabdutta77 said:
what is the probability for a randomly chosen time of day that the angle between the long hand and the short hand is a right angle?P.S. I don't know the answer.

i don't know if this is correct, but i m getting 11/181

90 deg can be made 11 times...

total sample space is from 0 to 180..

baaki pata nahi... :p

kinkong · January 25, 2013, 6:37pm

@mailtoankit thnx man!

hatemonger · January 25, 2013, 6:47pm

@Logrhythm sir clock main points main bi angle to hote hai?? to usko consider nai karna padega???

logrhythm · January 25, 2013, 6:53pm

@hatemonger said:
@Logrhythm sir clock main points main bi angle to hote hai?? to usko consider nai karna padega???

han bhai...but wo kara toh CBD hoga na answer toh...infinite ho jygi humari sample space..

calvin4ever · January 25, 2013, 6:56pm

@Logrhythm said:
han bhai...but wo kara toh CBD hoga na answer toh...infinite ho jygi humari sample space..

Could it be 22/(12*360) ?