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Shakuntala Devi
Quantitative Questions and Answers Discuss Quantitative and other Math related questions. Post your math doubts and get it solved by the smartest brains this side of the universe !

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24-05-2005, 03:36 PM

Quote:
Originally Posted by ramyadass
can u pls explain me how did u get the 58 inches as ans? iam poor in geometry
See the solution with figure----
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24-05-2005, 03:42 PM

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Fifty minutes ago if it was four times as many minutespast three o'clock, how many minutes is it to six o'clock?
OK. Let there be x minutes left for 6'o'clock. Between 3 and 6, we have 180 minutes. So we can also say, that the time is now, 180-x minutes from 3.

Now the question says, 50 minutes ago from (180-x) ..........(180-x-50)
it was four times as many minutes past 3 ...........(4x)

180-x-50 = 4x
x = 26 minutes


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24-05-2005, 04:45 PM

Quote:
Originally Posted by ramyadass
can u pls explain me how did u get the 58 inches as ans? iam poor in geometry


few more question:

2. is there any shortcut method to do this?

can u find largest possible number containing any 9 of the 10 digits , considering 0 also a number, tht is divisible by 11 , without a reminder?
Use the test of divisibility by 11.

The answer is 987645120....just check..n let me kno.


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24-05-2005, 05:14 PM

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Originally Posted by ramyadass
3.Numbered on the side of my house are the house one , two ,3 n so on .All the numbers on one side of my house add up to exactly the same as all the numbers on the other side of my house.
i know there are more than 50 houses on tht side of the street , but not as many as 500.
can u find house no
Go thru the discussion on this page regarding this problem

http://www.pagalguy.com/cat/showthre...4&page=9&pp=25

enjoyyyy.


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shakuntala devi - 24-05-2005, 07:42 PM

hey rajsher,

thx a lot

and the answer for the divisiblity by 11 (largest no is)987652413
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cts question - 24-05-2005, 07:45 PM

There are 6 people in a group A,B,C,D,E,F whose test scores are as follows out of 100.(names were given in the test which I don;t remember) and the following constraints:

- All but one person scores in the group are squares of integers

-One person's score is equal to the sum of two other persons in the group.

- None got zero marks.

- some B,D,E marks are cubes of integers.

- Some D multiplied by an odd number is an odd number.

- the differance between the scores of D and F is equal to the score of one person in the group.

question given for the above case are :

i) Who got the highest score?

ii)Who got the least score out of the following three??

iii)Whose score is equal to the sum of scores of two persons in the group.

guess many answers r possible
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cts ques - 24-05-2005, 07:47 PM

X,Y are standing at one end of the diameter of a circle with diameter 140m. C is standing at the other end.All of them start at the same time. X moves along the diameter and Y and C moves to meet each other along the circular path.

i) If they all meet at a point at the same time, find how much distance is travelled by C if the X and Y travel with the same speed.

ii) If X and Y travel at speeds in the ratio 2:1, and if they all meet at the same time, find after how many seconds, will they meet?

iii) similar question to above....

Some questions are given like, they give two sentences and you have to pick up the third sentence from the multiple choice, which relates to the two sentences....



iam just getting the nswer for the first one as 40 m , is it correct?
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clarify - 25-05-2005, 12:12 PM

Quote:
Originally Posted by ramyadass
X,Y are standing at one end of the diameter of a circle with diameter 140m. C is standing at the other end.All of them start at the same time. X moves along the diameter and Y and C moves to meet each other along the circular path.

i) If they all meet at a point at the same time, find how much distance is travelled by C if the X and Y travel with the same speed.

ii) If X and Y travel at speeds in the ratio 2:1, and if they all meet at the same time, find after how many seconds, will they meet?

iii) similar question to above....

Some questions are given like, they give two sentences and you have to pick up the third sentence from the multiple choice, which relates to the two sentences....



iam just getting the nswer for the first one as 40 m , is it correct?
how do y and c move, i mean do they move in the same direction or opposite direction


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cts - 25-05-2005, 12:23 PM

iam not very sure.
since they r moving to meet each other.
y n c shud move in oppsite direction ,tht is towards each other
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clarify - 25-05-2005, 01:34 PM

Quote:
Originally Posted by ramyadass
iam not very sure.
since they r moving to meet each other.
y n c shud move in oppsite direction ,tht is towards each other
well since y n c are moving in the circle they can meet in both the ways... ie same & opposite

could u just pass the solution where u got the ans as 40.


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