[Official] Quant Thread for 2015!

Clock A and Clock B show time as 12 pm on a Saturday.Clock A gains 16 minutes every 4 hours and clock B loses 48 minutes every 8 hours . After how many days the two clocks show the right time as 12 pm together again?

Bhai/Behen solution ke saath saath approach bhi bata dena, aise question kaise karte hain,  quite confused in this 

Determine the range of "a" for which the point (a, a^2) lies inside the triangle formed by lines: 2x + 3y =1 , x+2y = 3 and 5x-6y =1 .

Find the number of prime factors in

2^17*6^31*7^5*10^11*323^23??

**Off Topic**

Puys,

Any reviews on institutes in Bangalore to join for GD-PI prep.

Do you remember that question in QA in which 2 guys are running on circular track with time 15mins and 12mins ??

In that question as far as i remember it was given that they are running in same direction.. 

But ans. is coming if they run in opp. direction.

Anyone else remember if i was given same direction

Do you remember that question in QA in which 2 guys are running on circular track with time 15mins and 12mins ??

In that question as far as i remember it was given that they are running in same direction.. 

But ans. is coming if they run in opp. direction.

Anyone else remember if i was given same direction

http://imgur.com/3lLjb41

A boy collected 49 coins of denominations one-rupee, 50 paise and 25 paise. The total value is ` 23.50. The number of 25 paise coins is greater than the number of 50 paise coins and one-rupee coins together and the number of one-rupee coins is less than the number of 50 paise coins. Then compared to the number of one-rupee coins, how many more 25 paise coins does the boy have?

1) 5

2) 14

3) 15

4) 19

Solve it and kindly elaborate your approach

Anyone remember test set in lr slot1??

There are 7 seats in a row. Three persons take seats at random. The probability that the middle seat is always occupied and no two persons sit consecutively is

A   9/70

B 9/35

C 4/35

D None of these

Approach?

A bag contains 45 coins. It is known that 22 of these coins have a head on both sides, whereas the rest of the coins are normal. A coin is picked up at random from the bag and is tossed. The probability that the toss results in a head is

A   11/15

B 61/90

C 67/90

D None of these

Approach?

A tank is filled by 'n' pipes numbered 1, 2, ..., n. The rate of filling of the nth pipe is equal to twice the capacity of all remaining pipes put together. If the 21st pipe alone can fill the empty tank in 4 minutes, what is the time taken by the 18th pipe alone to fill the empty tank?

1) 27

2) 34

3) 54

4) 108

Approach please

HCF of 12,0.144 and 0.12?

roots of x^3+50x^2+4500x+16000=0

please post answer with approach

If a is the probability that only A occurs, b is the probability that only B occurs, c is the probability that only C occurs, then what is the probability that none of them occur?

(Please also describe the approach)


  • (1-a)(1-b)(1-c)
  • (1-a)(1-b)(1-c)/3
  • p where p is a root of (p+a)(p+b)(p+c)=p^2
  • p where p is a root of (p+a)(p+b)(p+c)=p^3

0 voters

What are some best colleges for mba in chennai which can be applied for using cat 2015 score? I have written my cat exam this year. So guys can anyone suggest some best colleges only in chennai?

N is a natural number where sum of all the digits of N is a multiple of 10 and sum of all the digits of (N+1) is also a multiple of 10.
What is the least possible value of N?

Manubhai wants to invest in the stock market through a systematic investment plan (SIP) fund . If Manubhai invests in SIP for 10 years expecting a return of 7.5% per annum. 

What will be the value of the SIP fund at the end of 10 years for a single deposit of Rs 2000 per year?

A)35246

B)28294

C)20892

D)30020

E)None 

Source: MICAT Sample paper. 

Anyone please help with the detailed approach. 

how to find if set of vectors  {(5,2,3) (5,-3,4)} is linearly independent or not?

http://imgur.com/j5USxum