Search found 109 matches
How many diagonals does a polygon with 20 sides have, if one of its vertices does not connect to any diagonal
Is it 20.17/2
or 19.16/2
- by sanjib
Sun Sep 27, 2009 11:13 am- Forum: Problem Solving
- Topic: How many diagonals does a polygon with 21 sides have?
- Replies: 8
- Views: 14930
Clue- Its a combination question.
How about solving this question:
how many triangle could be drawn from a polygon with n amount of sides.?
- by sanjib
Tue Sep 22, 2009 3:04 pm- Forum: Problem Solving
- Topic: How many diagonals does a polygon with 21 sides have?
- Replies: 8
- Views: 14930
I think it is C because we can multiply the first half SD with 6 to get the amount then we can multiply the second half SD also with 6 to get the amount and then add together both this amount and divide by 6 would provide the SD for the whole year. how we get six is the bell curve theory of SD (2+14...
- by sanjib
Tue Sep 22, 2009 2:56 pm- Forum: Data Sufficiency
- Topic: DS: Standard Deviation
- Replies: 2
- Views: 2593
four friends secretly choosing four distnct number
four friends secretly choosing four distnct number.
What is the probability that all of them would choose the same ny that all of them umber?
what is the probability that all of them choose distinctly?
- by sanjib
Tue Sep 22, 2009 2:37 pm- Forum: Problem Solving
- Topic: four friends secretly choosing four distnct number
- Replies: 2
- Views: 1391
There has been a 30- to 40-fold increase in the inciden
There has been a 30- to 40-fold increase in the incidence of malaria caused by increasing mosquito resistance against pesticides. (A) increase in the incidence of malaria caused by increasing mosquito resistance against (B) increase in the incidence of malaria because of increasing resistance of mos...
- by sanjib
Mon Sep 21, 2009 7:31 pm- Forum: Sentence Correction
- Topic: There has been a 30- to 40-fold increase in the inciden
- Replies: 5
- Views: 3745
- by sanjib
Sat Sep 19, 2009 12:05 pm- Forum: Data Sufficiency
- Topic: Is |x|< 1?
- Replies: 1
- Views: 1202
from all these it is very clear that the triangle is Right angle triangle because it is mentioned in the question stem itself. Now as we know A and from st.1 B we just cant assume that the C is right angled.So answer is C But the problem started when it gives the drawing figure. we all are thinking ...
- by sanjib
Sat Sep 19, 2009 11:41 am- Forum: Data Sufficiency
- Topic: What is the area of the triangle ?
- Replies: 15
- Views: 5663
how u know that the Price of Computer in either cities is not inclusive of Sales tax.SO if instead of t1>t2 the statement is p1>p2 the ans will be A or C.
- by sanjib
Sat Sep 19, 2009 5:10 am- Forum: Data Sufficiency
- Topic: num property, hard and official one
- Replies: 19
- Views: 6102
As part of a game, four people each must secretly choose an
As part of a game, four people each must secretly choose an integer between 1 and 4, inclusive. What is the approximate likelihood that all four people will choose different numbers?
9%
12%
16%
20%
25%
- by sanjib
Sun Sep 13, 2009 11:45 am- Forum: Problem Solving
- Topic: As part of a game, four people each must secretly choose an
- Replies: 16
- Views: 4213
Two couples and one single person are seated at random in a
Two couples and one single person are seated at random in a row of five chairs. What is the probability that neither of the couples sits together in adjacent chairs?
- by sanjib
Sun Sep 13, 2009 11:40 am- Forum: Problem Solving
- Topic: Two couples and one single person are seated at random in a
- Replies: 2
- Views: 1809
- by sanjib
Sun Sep 13, 2009 5:27 am- Forum: Data Sufficiency
- Topic: ia x negative
- Replies: 3
- Views: 1397
How many of the 60 cars sold last month by a certain dealer
How many of the 60 cars sold last month by a certain dealer had neither power windows nor a stereo? (1) Of the 60 cars sold, 20 had a stereo but not power windows. (2) Of the 60 cars sold, 30 had both power windows and a stereo Here as we know from st.1 20 has no pw no ster. we cant do any thing wit...
- by sanjib
Sun Sep 13, 2009 12:07 am- Forum: Data Sufficiency
- Topic: How many of the 60 cars sold last month by a certain dealer
- Replies: 1
- Views: 1334
How many of the 60 cars sold last month by a certain dealer
How many of the 60 cars sold last month by a certain dealer had neither power windows nor a stereo? (1) Of the 60 cars sold, 20 had a stereo but not power windows. (2) Of the 60 cars sold, 30 had both power windows and a stereo Here as we know from st.1 20 has no pw no ster. we cant do any thing wit...
- by sanjib
Sun Sep 13, 2009 12:07 am- Forum: Data Sufficiency
- Topic: How many of the 60 cars sold last month by a certain dealer
- Replies: 2
- Views: 2924
Each member's contribution is to be $4.
Every member of a certain club volunteers to con-tribute equally to the purchase of a $60 gift certificate. How many members does the club have?
(1) Each member's contribution is to be $4.
(2) If 5 club members fail to contribute, the share of each contributing member will increase by $2.
- by sanjib
Sat Sep 12, 2009 11:58 pm- Forum: Data Sufficiency
- Topic: Each member's contribution is to be $4.
- Replies: 1
- Views: 1323
- by sanjib
Sat Sep 12, 2009 11:56 pm- Forum: Data Sufficiency
- Topic: ia x negative
- Replies: 3
- Views: 1397