Search found 52 matches
I think, Total ways of selecting the envolpes and letters are 4*4 ways. Not getting the right letter into the envolope is 4+3+2+1 ways into fowur letters. Total probability of not getting the letter into rt envolope is 10/16 ways. Probability of getting rt letter into the rt envolope is 1 - 10/16 = ...
- by kvamsy
Wed Aug 26, 2015 12:32 pm- Forum: Problem Solving
- Topic: Gmat prep Question
- Replies: 4
- Views: 1473
- by kvamsy
Wed Feb 22, 2012 7:18 am- Forum: Problem Solving
- Topic: Number of squares - Please help
- Replies: 2
- Views: 1055
Each student at a certain business school is assigned a 4-digit student identification number.The first digit of the identification number cannot be zero, and the last digit must be a prime number. How many student identification numbers can be created? [source: Veritas free practice test for GMAT]...
- by kvamsy
Mon Oct 24, 2011 1:31 am- Forum: Problem Solving
- Topic: combination
- Replies: 5
- Views: 1346
Is the answer is C ?cmal_s wrote:QUESTION)
Is x+ y < 1
1) x< 8/9
2) y< 1/8
Stnt 1) is not sufficent alone as we dont know the y value ,simlar scenario for Stnt 2.
So with the combination we can determine the condition.
Please let me know whether this explanation is correct.
- by kvamsy
Wed Mar 24, 2010 10:42 am- Forum: Data Sufficiency
- Topic: x and y
- Replies: 7
- Views: 1204
Hi,
Basic Fundamental is Work in indirectly proportional to number of hours . As the number of persons increased then the number of hrs also gets reduced.
so the answer as follows
W1/W2 = H2/H1 , i:e 2/12 = X/3 - - - > solving the equation gives X as 30 mins
- by kvamsy
Tue Mar 23, 2010 9:40 pm- Forum: GMAT Math
- Topic: Simple, Basic Math problem
- Replies: 5
- Views: 2209
WORK - Interesting problem
Three men or five women can construct the wall in 68 days. how long will it take for 5men and 3 women to complete the same job.
A) 25
B) 35
C) 30
D) 40
E) 42.5
- by kvamsy
Tue Mar 23, 2010 9:31 pm- Forum: Problem Solving
- Topic: WORK - Interesting problem
- Replies: 6
- Views: 1440
On January 1, 2076, Lake Loser contains x liters of water. By Dec 31 of that same year, 2/7 of the x liters have evaporated. This pattern continues such that by the end of each subsequent year the lake has lost 2/7 of the water that it contained at the beginning of that year. During which year will...
- by kvamsy
Thu Feb 18, 2010 3:51 am- Forum: Problem Solving
- Topic: lake loser
- Replies: 3
- Views: 2690
I am getting as OA : A, Please let me know if this is correct to post the explanationAman verma wrote:Q: The remainder when 888222888222888222........... upto 9235 digits is divided by 5^3 ( 5 raised to the power 3) is :
a) 38
b) 72
c) 103
d) 139
e) Can't be determined
- by kvamsy
Wed Feb 17, 2010 3:56 am- Forum: Problem Solving
- Topic: Remainder Problem
- Replies: 5
- Views: 1232
you are rightrahul.s wrote:i think you meant 13/18kvamsy wrote:One more way to solve.
Total number of ways of selecting 2 flowers = 9C2 = 36
2 flowers should select at random = (2C1*3C1)+(2C1*4C1)+(3C1*4C1)
probability = 26/36 -----> 13/26
- by kvamsy
Tue Feb 16, 2010 5:51 am- Forum: Problem Solving
- Topic: florist (probability)
- Replies: 5
- Views: 1128
a florist has 2 roses, 3 buttercups, and 4 orchids. she puts 2 flowers together at random in a bouquet. however, the customer calls and says that she does not want 2 of the same flower. what is the probability that the florist does not have to change the bouquet? sorry, but there aren't any answer ...
- by kvamsy
Tue Feb 16, 2010 5:26 am- Forum: Problem Solving
- Topic: florist (probability)
- Replies: 5
- Views: 1128
the line represented by the equation x = y is the perpendicular bisector of the line segment AB. if A has the coordinates (-3, 3), what are the coordinates of B? [spoiler]OA is (3, -3)[/spoiler] If we have options, We can track very easily by using the formula Slope= (Y2-Y1)/(X2-X1) should be equal...
- by kvamsy
Tue Feb 09, 2010 9:14 pm- Forum: Problem Solving
- Topic: coordinate geometry
- Replies: 5
- Views: 1166
A company manufactures pencils in boxes of 6, 9, and 20. The boxes are sealed and the pencils cannot be sold loose. What is the largest number of pencils that a wholesaler cannot purchase using some combination of these boxes? (A)43 (B)199 (C)99 (D)86 (E)None of the above. I agree with Harsh, Becau...
- by kvamsy
Sun Feb 07, 2010 11:25 pm- Forum: Problem Solving
- Topic: Number system
- Replies: 6
- Views: 1881
Please post one question per thread. This will bring clarity into the posts. ______________ Surely,it looks a bit cluttered right now. As for the solution, Ans2)As we know that only 2 boys (suppose B1 and B2) can play goal,only 1 of them can remain in the team while the other sits out. Case 1:Suppo...
- by kvamsy
Fri Feb 05, 2010 3:14 am- Forum: Problem Solving
- Topic: Combination problems
- Replies: 8
- Views: 1736
1.) There are 9 staffs which would be assigned to 3 projects. 3 Staffs to each project and no one is assigned to multiple projects, how many different combanations of project are possible? A) 252 B) 1680 C) 2340 D) 362880 E) 592704 2.) There are 10 boys. 6 boys will be assigned to a football team, ...
- by kvamsy
Fri Feb 05, 2010 3:12 am- Forum: Problem Solving
- Topic: Combination problems
- Replies: 8
- Views: 1736
I solved it this way - assume r = 100x + 10y + z ....equation 1 The question is asking is you can find y. From hint 1 & eqn. 1, r/10 = 10x + y +(maybe some fraction). All the hint gives you here is the ten's place of r/10 which gives you x, not y. From hint 2 & eqn.1, 10r = 1000x + 100y + 1...
- by kvamsy
Thu Jan 28, 2010 7:33 am- Forum: Data Sufficiency
- Topic: Digits
- Replies: 5
- Views: 1475