Search found 16 matches
When 10 is divided by the positive integer n, the remainder is n-4. Which of the following could be the value of n ? A) 3 B) 4 C) 7 D) 8 E) 12 Please illustrate your logic and working out. Thanks, divi C. Dividend = Quotient x Divisor + Remainder any options less than 10 , quotient will be 1 so its...
- by Baten80
Fri Mar 04, 2011 10:29 pm- Forum: Problem Solving
- Topic: When 10 is divided by the positive integer n,
- Replies: 9
- Views: 8746
If 5400mn = k^4
If 5400mn = k^4, where m, n, and k are positive integers, what is the least possible value of m + n?
A. 11
B. 18
C. 20
D. 25
E. 33
- by Baten80
Sun Feb 27, 2011 3:24 am- Forum: Problem Solving
- Topic: If 5400mn = k^4
- Replies: 4
- Views: 1989
Problem solving
A has $18 more than what B & C together would have had if both B and C had 1/4 of what A has. How much does A have?
(A) 20
(B) 48
(C) 32
(D) 36
(E) 40
- by Baten80
Tue Feb 08, 2011 11:39 am- Forum: Problem Solving
- Topic: Problem solving
- Replies: 2
- Views: 1238
Problem Solving
A has $18 more than what B & C together would have had if both B and C had 1/4 of what A has. How much does A have?
(A) 20
(B) 48
(C) 32
(D) 36
(E) 40
- by Baten80
Tue Feb 08, 2011 11:36 am- Forum: Problem Solving
- Topic: Problem Solving
- Replies: 2
- Views: 1316
Value of n
n is a positive integer, and k is the product of all integers from 1 to n inclusive. If k is a multiple of 1440, then the smallest possible value of n is
A. 8
B. 12
C. 16
D. 18
E. 24
- by Baten80
Fri Sep 24, 2010 10:34 am- Forum: Problem Solving
- Topic: Value of n
- Replies: 1
- Views: 981
You also could have just picked a number - a much quicker approach. let p=3 n= 4*3 = 12 the even divisors of 12 are 2, 4, 6 and 12: choose (C). We can be confident that no matter which number we pick we'll get the same answer, because only one of the 5 choices can possibly be correct. thanks stuart
- by Baten80
Thu Sep 16, 2010 7:12 am- Forum: Problem Solving
- Topic: Divisibility/Primes: If n=4p, where p is prime number greate
- Replies: 11
- Views: 11299
Let's say that the store charges x dollars for each towel that it sells. When the store sells a total of y towels, it makes 120 dollars. xy=120 We're told that if the price of each towel increase by $1, then 10 fewer towels could be bought for 120 dollars. (x+1)(y-10)=120 120-10x+y-10=120 y-10x=10 ...
- by Baten80
Thu Sep 16, 2010 6:04 am- Forum: Problem Solving
- Topic: towels
- Replies: 9
- Views: 6083
here the rounding off of numbers is tested... distance rounded to nearest 10 miles = 290..so actual distance covered may be b/w 285 and 294. gasoline used rounded to nearest gallon = 12...so actual gas used may be b/w 11.5 and 12.4. now to get range of of miles/gallon we'll use the formula least va...
- by Baten80
Sat Aug 28, 2010 7:45 am- Forum: Problem Solving
- Topic: I dont understand this question
- Replies: 16
- Views: 9111
Exponent
If (6^2)(44)(5^x)(20) / (8^2)(9) = 1375, what is the value of x?
A -1
B 0
C 1
D 2
E 3
Show details please. I do not know correct answer.
- by Baten80
Sat Aug 21, 2010 3:28 pm- Forum: Problem Solving
- Topic: Exponent
- Replies: 2
- Views: 1227
- by Baten80
Sat Aug 21, 2010 3:26 pm- Forum: Problem Solving
- Topic: Exponent
- Replies: 3
- Views: 1231
Hi folks, I just received a heads up from Eric to share the documents with all the members here. The documents contain Math (PS,DS) and CR questions, which are discussed in beatthegmat.com, with the best strategies, approaches and takeaways suggested by our Experts (To name a few - Stuart, Ian, Ron...
- by Baten80
Thu Aug 19, 2010 9:57 pm- Forum: GMAT Strategy
- Topic: Download GMAT questions with Expert solutions!
- Replies: 80
- Views: 106371
Hey Stuart, Just had a question. In a problem like this where the work being done by both things is the same (240 files), can you substitute 1 for the 240 in all problems like this? Would it work if i just entered 240 instead of 1? Thanks, Hi, whenever the time given is for the two people to do the...
- by Baten80
Thu Aug 19, 2010 1:19 pm- Forum: Problem Solving
- Topic: GMAT Prep question
- Replies: 13
- Views: 5471
GMAT Prep question
While working alone at their respective constant rates, computer x processes 240 files in 4 hours and computer Y processes 240 files in 8 hours. If all files processed by these computers are same size, how long would it take the two computers, working at the same time and at their respective constan...
- by Baten80
Sat Aug 14, 2010 12:51 pm- Forum: Problem Solving
- Topic: GMAT Prep question
- Replies: 13
- Views: 5471
- by Baten80
Fri Aug 13, 2010 8:07 pm- Forum: Problem Solving
- Topic: GMAT prep math
- Replies: 1
- Views: 978
Hello Mittal, can you please explain the following part: => 5^m x 2^36 = 2 x 2^35 x 5^35 (4 = 2^2 and 10 = 2x5) this is what i am doing and I don't understand how you got to yours. (1/5^m)(1/4^18) = ..... since 5 and 4 = 20, i am just subtracting 18 from 35. hence I got 17 which is wrong. Let Know:...
- by Baten80
Thu Aug 12, 2010 9:21 am- Forum: Problem Solving
- Topic: 5 PS answer explanation needed / GMATPrep Test 1
- Replies: 11
- Views: 1807