[Official] Quant Thread for 2015!

The point in the plane of a triangle which is at equal perpendicular distance from the sides of the triangle is : centroid, incentre , circumcentre, orthocentre ?


A can beat B by 5m in a 100m race and B can beat C by 10m in a 200m race. Then in a race of 500m , what is the lead that A can give C? Approach 

pls..

If 10 hens lay 10 eggs in 10 days, please tell me, how many eggs does one hen lay in one day ?

PG stalwarts, kindly bless this post with your insightful answers.

 - A fan of PG.


ABCD is a rectangle with AD=10.P is a point on BC such that  Angle APD=45 Degree.How many of the followng are possible values of AB?

A)9.5;   B) 10.2;  C)11.4;    D)12.3.

Options:-0/1/2/More than 2.

How many distinct 6 digit numbers are there having 3 odd and 3 even digits?

  • 55
  • 281250
  • (5.6)^3 .(4.6)^3 .3
  • NOT

0 voters

A rectangular floor is fully covered with several square tiles of equal size. All the tiles on the floor's edges are blue and the tiles in its interior are green. The number of green tiles is twice the number of blue tiles. Which of the following represents a possible value of the number of tiles along the floor's length. 

28   30    32     34      ???? 

can anyone suggest a good book for di and lr??

I have issues with speed in quant. By studying vedic maths, can i improve on this front? 😞

Nanha Babu, inspired by motivational lectures on "Merits of Savings" by his mother, started saving his money. He bought a "piggy-bank" and started putting some coins in it every day. His little "piggy-bank" was a hi-tech digital gadget, which could give the details of the number of coins present in it at the end of that day.

Nanha Babu's mother used to check the digital reading at the end of each day. She was happy that the reading showed an increase every day for the first 8 days. However, in the last two days, the reading showed a decline and she found that the digital reading on day 10 was 13, which was less than the reading on day 9, which was 19, which, in turn, was less than that on day 8.

Nanha Babu's mother got upset at this and enquired with her child about this. When asked, Nanha Babu candidly the the the the one, zone ing confessed, "On each of the first two days, I did not take out any coin. However, I could not resist the temptation of buying and eating chocolates. So, from day 3 onwards, I started taking out at least one coin every day. Also, the number of coins that I took out on any day was more than that on the immediately preceding day".

His mother, evidently disappointed, inquired further and asked, "How many coins did you put in each day?"

A frightened Nanha Babu now replied sobbingly, "l do not remember the number of coins I put in each day, but I remember that the number of coins that I put in each day was more than that on the immediately preceding day. Also, on day 10, I took out 20 coins.

His mother then sat down and started figuring out what could have happened on each individual day. She could trace out that the number of coins left in the box at the end of each day was a distinct odd number. Also, she knew that the increase in the reading on day 8 over that on day 7 was the same as the decrease in the reading on day 10 from that on day 9.

1. The number of coins in the piggy-bank at the end of day 8 was at least

a.21

b.23

c.25

d.Cannot be determined

2.Find the number of coins that Nanha Babu put in on day 5

a. 9

b.8

c.5

d. C.B.D

3.Find the number of coins in the piggy bank at the end of day 7

a.15

b.17

c.21

d. C.B.D

Explanation is needed..

in a tank, there is a leak which can empty the tank in 20 hours, at 3/4th of the height above the base. There are 2 pipes filling the tank which can fill the tank in 6 and 12 hrs. resp. How much time does it take to fill the tank, if both filling pipes are opened simultaneously ? 

3.75, 4.25, 4.75, 5.25  

N is a three digit number which ends with same number of zeroes(atleast one) in base 2,3,5 how many values can N take 

The number of integer solutions of a ,b c such than a^2+b^2-8c = 6 is ? 

Let a, b, c, d be positive integers and logb to base a = 3/2, logd to base c  = 5/4 & . If a-c=9, then b-d = ? 

Hi Guys,

I'm relatively new here. Could any of you please let me know about a few of the good free mocks available. Got to know of Bulls and Dash cat. Any other along similar lines?

min value of 2cos^2 theta +3 cos theta sin theta + 3sin^2 theta

highest power of 2 in (32!33!+.....+90!)

for n=(1,2,3..100)

for how many values of n tens digit of n^2 is odd?

How many ways of distributing 15 people into 3 groups such that each group contain at least 3 people ?

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nCr / n C (r-1) = (n-r+1) / r.. Explain logically please..