Search found 57 matches
An amount is deposited into an account accruing interest annually at a fixed percentage rate. It is valued at $900 in the third year (after interest has compounded twice), and $1080 in the fourth year (after interest has compounded three times). What is the original amount? A.540 B.$600 C.$625 D.$7...
- by mathewmithun
Sun May 12, 2013 11:10 pm- Forum: Problem Solving
- Topic: Compounded n times
- Replies: 4
- Views: 1549
Probability question-Experts pls help
I am getting stumped by this question-I wrote the different possibilities and I was getting 3/5. But clearly my approach was wrong and I am certain that my answer is also wrong. So pls help me solve this question. Diana is going on a school trip along with her two brothers bruce and clark. the stude...
- by mathewmithun
Thu Nov 01, 2012 10:11 am- Forum: Problem Solving
- Topic: Probability question-Experts pls help
- Replies: 3
- Views: 1467
Why r u splitting 36 into 4*9, 8^36= XXXXXXXX6 after the repetition of 9 cycles. I will approach this problem differently 8^36=( 6+2)^36 and now doing its binomial expansion and looking for remainder all members except 2^36 are divisible by 6 now 2^36=8^12= ( 6+2)^12 repeating the same we will get ...
- by mathewmithun
Sun Oct 21, 2012 11:20 am- Forum: Problem Solving
- Topic: Cyclic property question
- Replies: 2
- Views: 1164
Hold the phone. I just found the original question, and it doesn't say "What is the least possible amount of Jean's balance for this month?" The question says, "Which of the following could be Jean's balance for this month?" So, if the balance is $892.50, then 2% interest is exa...
- by mathewmithun
Sun Oct 21, 2012 11:16 am- Forum: Problem Solving
- Topic: Percentage problem-tricky question, PLS HELP
- Replies: 5
- Views: 3126
Cyclic property question
I am aware of cyclic principle and their use in finding remainders or units digit. I tried to use this method to find the remainder of (8^36)/6. the cyclic value of 8 is 4 that is 8^4 gives unit digit 6 and when we multiply another 8 that is 8^5, the unit digit repeats. So i rewrite 8^36 as 8^(4*9) ...
- by mathewmithun
Sun Oct 21, 2012 10:54 am- Forum: Problem Solving
- Topic: Cyclic property question
- Replies: 2
- Views: 1164
Just an after thought, if the question was to find maximum possible amount of Jean's balance, I guess the solution provided and the OA sufficed.
Oh God, I am seriously confused!!! Pls help me folks...
- by mathewmithun
Sat Oct 20, 2012 10:50 pm- Forum: Problem Solving
- Topic: Percentage problem-tricky question, PLS HELP
- Replies: 5
- Views: 3126
Percentage problem-tricky question, PLS HELP
If one of Jean's credit cards charges more than 2 percent interest each month on any balance, and this month Jean paid more than $17.85 in interest, what is the least possible amount of Jean's balance for this month? A) $357.00 B)357.50 C)892.00 D)892.50 E)893.50 OA is E. And this is how they would ...
- by mathewmithun
Sat Oct 20, 2012 10:44 pm- Forum: Problem Solving
- Topic: Percentage problem-tricky question, PLS HELP
- Replies: 5
- Views: 3126
P.S: Figure is not drawn to scale In the attached image, if w+x=150. What is x? http://s9.postimage.org/hifdnkn57/Math_Prob.jpg I tried it, but could not get to the solution.All I could get to was y=45, the unknown angle in triangle containing w and x angles was 30. thats all... pls provide answer
- by mathewmithun
Wed Aug 22, 2012 6:21 pm- Forum: Data Sufficiency
- Topic: Find x
- Replies: 4
- Views: 1025
- by mathewmithun
Mon Aug 13, 2012 1:48 am- Forum: Problem Solving
- Topic: Must be true-Inequalities question: Experts pls help
- Replies: 3
- Views: 957
Must be true-Inequalities question: Experts pls help
if 0<1-f/g<1 and g>0, which of the followiing must be true? 1. f^2+g^2>1 2. f>0 3. f/g<1 A. 1 only B. 3 only C. 1 and 3 only D. 2 and 3 only E. 1,2 and 3 only OA is D but I choose E as the answer. STEP-1: 0<1-f/g<1 can be re-written as -1<-f/g<0 by subtracting 1. So 0<f/g<1. Since g>0, and f/g is +v...
- by mathewmithun
Mon Aug 13, 2012 1:39 am- Forum: Problem Solving
- Topic: Must be true-Inequalities question: Experts pls help
- Replies: 3
- Views: 957
#1 Statement 1 tells us that the payroll is currently 555k (adding 2*10k to 535k) The only way to get 555k out of 55k and 45k is to have 6*55 + 5*45. Sufficient. Statement 2: Reduction by 1/3 is a loss of 15k for sys-admins, so: St 2 tells us that -15S + 3C = -57 -5S + C = -19 S = 4, C = 1 S = 5, C...
- by mathewmithun
Tue Aug 07, 2012 12:06 am- Forum: Data Sufficiency
- Topic: Ratios - princeton review problems.
- Replies: 7
- Views: 1976
thanks, I somehow overlooked "maximum". B is the answer GMATGuruNY, GmatMathPro and other experts, I am just surprised by the ease with which you approach quants and DS. Although theory and practice goes a long way in building confidence to face difficult quant/DS, I am still unable to fac...
- by mathewmithun
Fri Aug 03, 2012 12:09 pm- Forum: Problem Solving
- Topic: Averages and Median in Office-experts pls help
- Replies: 3
- Views: 1387
Averages and Median in Office-experts pls help
Five offices have an average of 8 people per office and a median of 7 people per office, and none of the offices are vacant. What is the maximum number of people who can be in the largest office? A. 23 B. 24 C. 25 D. 26 E. 27 although OA is 24, I think 23 will also fit this scenario Pls help...
- by mathewmithun
Fri Aug 03, 2012 11:15 am- Forum: Problem Solving
- Topic: Averages and Median in Office-experts pls help
- Replies: 3
- Views: 1387
Interesting percentage question
Hi guys, I found this question in a book which does not have the OA. A's income decreased from 75000$ to 60000$ while B's income increased from 60000$ to 75000$. What percentage of decrease in A's income is the increase in B's income? 1)125% 2)75% 3)133% 4)100% Well from the wording of the question,...
- by mathewmithun
Fri Jun 22, 2012 11:24 pm- Forum: Problem Solving
- Topic: Interesting percentage question
- Replies: 1
- Views: 1438
- by mathewmithun
Wed Jun 20, 2012 4:33 am- Forum: Data Sufficiency
- Topic: Set question
- Replies: 3
- Views: 847