Official Quant thread for CAT 2013

@dream_IIMA Bro, PFA my approach to the equilateral triangle wala question


TIME Students,

I have a query.. What is this Lot 2 study materials.. I joined way back in 2009. I have all the materials of then.. So is this Lot 2 materials some new stuff or just the rehash of old materials.. Kindly clarify..

Q. What is the highest possible value of 'n' for which 3^1024 – 1 is divisible by 2n?

I could figure out till this step then its confusion :/

3^2^10 - 1
(3^2^9 - 1 )(3^2^9 + 1)

....

.....

.......
2 * 2^2 * .........(3^2^8 + 1 )(3^2^9 + 1)



OA 12

Any one having old question papers of nmat in pdf format plz share the links...

what would be the digit in hundreds position of 1!*2!*3!*4!*5!*6!. would be so nice if could explain the process. Thanks!

There are 100 questions in a question paper.Each correct attempt fetches 1 mark and each wrong attempt attracts a penalty of one third of a mark.How many different integral scores are possible for a student who attempts 80 questions in the paper ? :thumbsup:
If set A contains 5 elements and B contains 4 elements,then what is the no of Onto functions possible from A to B? :thumbsup:

One of the roots of the equation (x^2)-x+3m=0 is double than one of the roots of equation (x^2)-x+m=0. If m is not equal to 0 then what's the value of m?

  • 2
  • -2
  • 1
  • -1

0 voters

How many 6 digit nos comprising of digits 6 and 8 only are divisible by 3?

pls tel me the general formulae for finding the no of side painted. when the cube i cut into smaller cubes ( 0 side, 1 side, 2 side, 3 side painted .. etc)

prsquare /100 square is the formula for difference between si and ci for first two years


what will be the formula for

difference between si and ci for the third year?

In a parliamentary debate, a bill was being passed. 600 votes were cast initially but after some discussion, the opposition to the bill went up by 150%. The bill was then rejected by a majority 2 times as great as that by which it was passed previously. How many people rejected the bill initially?

Options:

1.

500

2.

400

3.

300

4.

200

Anil and Binod started a business by investing Rs. 35,000 and Rs. 13,000 respectively. At the end of every month, Anil withdraws certain amount from his investment and Binod invests the same amount as Anil has withdrawn. At the end of the year they share the profits in the ratio 1:1. Find the amount invested by Binod every month.

Options:

1.

1000

2.

2000

3.

2500

4.

3000

5.

None of these

log (x-4)^2 + log (28-6x)^3 = 1... the first log is to the base 4 and second one to the base 8...


the no. of real values of x satisfying the above eqn??...

scores can vary from 80 to - 26.66 .. with a variation of 1.33 .. so answer im gettin as 29 .. iwats d rite answer and approach ?

Q. Anu and Prem started running simultaneously from diametrically opposite points on a circular track. They ran in opposite directions and met after 12 minutes for the first time. If the distance between them exactly 't' minutes after they start is equal to a quarter of the length of the track, which of the following is not a possible value of 't'?
42
78
90
144

OA = 144

hi guyz.......please cud aneone help me with questions asking for the integral solutions to equations with examples plzz

how many positive integers can be formed with the digits 0,1, and 2 not greater than 2 million.

Please explain your approach as well. Thanks

In the current polls from Lahore city constituency, the number of votes not cast for the Pakistan's Peoples Party increased 33% over those not cast for it in the previous polls. The only other candidate belonged to Muslim League. If a total of 4,50,000 people voted each time and Peoples Party loses this time by a majority one-third as large as that by which it had won in the last poll, how many people voted for the Peoples Party in the current polls?

150, 000

210, 000

240, 000

180, 000

280, 000

Q.25 Anu and Prem started running simultaneously from diametrically opposite points on a circular track. They ran in opposite directions and met after 12 minutes for the first time. If the distance between them exactly 't' minutes after they start is equal to a quarter of the length of the track, which of the following is not a possible value of 't'?


a42

b78

c90

d144


please quote me wd xplanation. thanks