Quant by Arun Sharma

hello friends i have a question for u all.
a circle is inscribed in a square and between the gaps a rectangle is drawn of 20*10 cm,find the radius of the circle.
(a) 20
(b) 40
(c) 50
(d) non


scrapped .....
1.The difference between simple and compound interest on a sum of money at 5% per annum s Rs 25.What is the sum?
a)5000
b)10000
c)4000
d) data insufficient

2.Difference between the interest received from 2 diff banks on Rs 400 for 2 years is Rs 4.What is the diff between their rates?
a)0.5%
b)0.2%
c)0.23%
c)0.52%

3.If the CI on a certain sum for 2 years is Rs 21.What could be the SI?
a)20
b)16
c)18
d)20.5

Thanks!

for question 1 it is a not possible case as the interest amount received for beginning year in bot ci and si are same.
In question 2 the answer is .5%
and for question 3 assume the sum as 100 and solve answer will be 20.

Thanks but ans for question 1 is not d,kindly explain.
for question 2 ... whats the approach?
I would try question 3 and update by evening.

for question 2 take rates x and y and apply higher interest - lower interest=4

deepshii Says
perm com ka example 16.12 samjha do bhai logggg


Let the 7 children be : A,B,C,D,E,F,G.
Now, we have to find the no. of ways when a individual child will go to the cinema before a group is repeated.
Let us randomly select the child as A.
So, he will go to the cinema x times before he goes with the same 2 children again.
Now, there are 6C2 ways to select his 2 companions out of the 6 remaining children.
=>x = 6C2.
avinav2712 Says
Is the answer 9?? I'm not very sure about the answer.

//it should be 16,
here are the values:
(4,0),(0,4),(2,2),(6,6),(2,6),(6,2),(4,,(8,4),(3,7),(3,1),(5,7),(5,1),(1,5),(7,5),(1,3),(7,3).
avinav2712 Says
Is the answer 9?? I'm not very sure about the answer.

//it should be 16,
here are the values:
(4,0),(0,4),(2,2),(6,6),(2,6),(6,2),(4,,(8,4),(3,7),(3,1),(5,7),(5,1),(1,5),(7,5),(1,3),(7,3).
Onkar Choubey Says
When 4N is divided by D it leaves a remainder 9 and when 3N is divided by D it leaves a remainder 13.What is the remainder when N is divided by D?


refer
http://www.pagalguy.com/discussions/official-quant-thread-for-cat-2011-part-5-25071240

solved by me..

post number
6932

how to solve this question? Thanks in advance.
Prob that a student will pass in Math is 3/5 and Eng is 1/3 and passing in both is 1/8. What is the probability that he ll pass in one subject?
a 97/120 b 87/120 c53/120 d 120/297

The odds in favour of A, B abd C to stand first in an exam are 1:2, 2:5 and 1:7 resp. What is prob that one of them will stand first?

In an examination,the max marks for each of the three papers is 50 each.The max for the fourth paper is 100.Find the number of ways with which a student can score 60% marks in aggregate.


Help !

Find the num of zeros in 1!*2!*3!....*50*

my ans is 62
book ans is 262

Is the book ans wrong ?
plz reply guys. i need to complete the book in 15 days max

the thread seems to be dead

Book in this case is correct

Number of zero in 200! is 49

and in 100! is 24

so u can just add

In the case above also i mean the previous question

i think answer of book might be correct

but i m sure your answer is wrong :)

actuall what ur doing mistake is ur taking values

so correct it

5! has 1 zero
6! also have 1 zero
so going on till 9! you have 5 Zero's and similarly till 20! you have 34 zero's got it dude

so u can find the correct answer now

thnks buddy actually i had already deleted my Q b4 ur reply. but thnks for the prompt reply. plz try the Q above
thnks

Book in this case is correct

Number of zero in 200! is 49

and in 100! is 24

so u can just add

i have already post the way u can approach i can do that question but idea is you should do it

and even then u face problem tel me

thnx buddy now i got it actually i was skipping the intervening non multiples of 5 !!

u will get this type of serries of zero

5+10+15+20+30+35+40+45+50+12

Please help me in the following questions. These are not from arun sharma. Please post a detail explanation of the solution.

1. Two friends A and B roll a pair of dice. A wins if a 12 is thrown. B wins if consecutive 7 appear. The game continues until one of them wins. The probability that A win is
(a)6/11 (b)7/13 (c)8/15 (d)9/17

2. The remainder obtained on dividing a polynomial X^1003 + x+3 by X^2 -1
(a)x+2 (b)2x+3 (c)2x-3 (d)x-2


3. For how many values of K, the LCM of
6^6, 8^8 and k is 12^12
(a)12 (b)24 (c)25 (d)none

Hi,

I come across the qn.Help me to get the answer.

Qn:

Each term of the G.P is 1/X of the sum of all the terms following it.Find the common ration of the progression in terms of X.

a)(X-1)/X b) X/(X-1) c)(x+1)/(x+2) d) none of these


Thanks.