Search found 26 matches
DS-Number Properties : Need simple explanation to solve
If x is a positive integer, is x square – 1 divisible by 24?
(1) x is odd
(2) x leaves a remainder when divided by 3
OA:C
Question: Not able to understand on how to solve and need explanation for the same.
Experts please help.
- by dhiren8182
Thu Aug 15, 2019 10:20 pm- Forum: GMAT Math
- Topic: DS-Number Properties : Need simple explanation to solve
- Replies: 1
- Views: 4919
Want simple explanation for this PS question on Ratios
The ratio of two positive numbers is 3 to 4. If k is added to each number the new ratio will be 4 to 5, and the sum of the numbers will be 117. What is the value of k?
Ans Choices
1
13
14
18
21
OA 13
Not able to figure out on how my approach should be
Regards,
Dhiren
- by dhiren8182
Sat Jan 17, 2015 7:28 pm- Forum: Problem Solving
- Topic: Want simple explanation for this PS question on Ratios
- Replies: 11
- Views: 8854
Skeptical about OA .DS question from Veritas Prep
Dear Gurus, Please help me to understand the question and especially answer .This is from Veritas Prep. Will raise my doubt underneath where explanation is given. Question:Last Friday, a certain shop sold 3/4 of the sweaters in its inventory. Each sweater sold for $20. What was the total revenue las...
- by dhiren8182
Fri Jan 16, 2015 1:20 am- Forum: Data Sufficiency
- Topic: Skeptical about OA .DS question from Veritas Prep
- Replies: 3
- Views: 1818
PS Question on Time Rate and Distance-Not able to solve
Carlos can run a mile in 6 minutes. Kevin can run a mile in 8 minutes. If Kevin goes out to practice and starts 1 minute before Carlos starts on his practice run, will Carlos catch up with Kevin before he reaches the mile marker? (Assume a straight track and average speed.) A)3/2 mile B)2 mile C)1/2...
- by dhiren8182
Sat Jan 10, 2015 12:06 am- Forum: Problem Solving
- Topic: PS Question on Time Rate and Distance-Not able to solve
- Replies: 3
- Views: 2917
PS:Not able to derive final answer
Hi Guru(s),
If K is the sum of reciprocals of the consecutive integers from 43 to 48, inclusive, then K is closest in value to which of the following?
A. 1/12
B. 1/10
C. 1/8
D. 1/6
E. 1/4
OA is A
Not sure how to derive the final answer with approximation
Thanks
Dhiren
- by dhiren8182
Mon Jan 05, 2015 10:09 pm- Forum: Problem Solving
- Topic: PS:Not able to derive final answer
- Replies: 4
- Views: 6213
Not able to understand problem from Veritas Prep-Need Help
Hi Gurus, Here is a simple question (i may sound stupid) but i not able to comprehend properly.Especially the statement in bold.Would appreciate if any one can explain the solution in simple language. A trail mix company keeps costs down by employing the peanuts:cashews:almonds ratio of 10:4:1 in ea...
- by dhiren8182
Sun Jan 04, 2015 12:41 am- Forum: Problem Solving
- Topic: Not able to understand problem from Veritas Prep-Need Help
- Replies: 5
- Views: 2622
- by dhiren8182
Wed Jun 19, 2013 3:34 am- Forum: Problem Solving
- Topic: Percent
- Replies: 5
- Views: 4768
Can we used the direct formula:
rates of r*rate of y/r+y
36*18/54=12 in 1 hr
so in 2 hrs 6 machines will be required.
Ans is C
Dhiren
- by dhiren8182
Wed Mar 21, 2012 5:53 am- Forum: Problem Solving
- Topic: GMAT Prep 1 #3_PS Rates Work #13
- Replies: 6
- Views: 1449
Hi, I solved in a way mentioned underneath. No fo stamps be x.So as per given information it's in ratio k/a= 5x/3x. Now,as per que stem; 5x-10/3x+10=7/5 solving this we get x=30. Now putting values in the above equation:5x-10/3x+10=7/5 we get kaye's no of stamps to be 140 and alberto's as 100 so to ...
- by dhiren8182
Tue Mar 20, 2012 11:29 pm- Forum: Problem Solving
- Topic: GMAT Prep 1 #3_PS Ratio #31
- Replies: 4
- Views: 1216
Hi, I solved in a way mentioned underneath. No fo stamps be x.So as per given information it's in ratio k/a= 5x/3x. Now,as per que stem; 5x-10/3x+10=7/5 solving this we get x=30. Now putting values in the above equation:5x-10/3x+10=7/5 we get kaye's no of stamps to be 140 and alberto's as 100 so to ...
- by dhiren8182
Tue Mar 20, 2012 11:29 pm- Forum: Problem Solving
- Topic: GMAT Prep 1 #3_PS Ratio #31
- Replies: 4
- Views: 1216
- by dhiren8182
Sun Mar 11, 2012 11:16 pm- Forum: Problem Solving
- Topic: GMATPrep Test 1 #2_PS Number Properties #3
- Replies: 3
- Views: 833
I solved in this way.
Profit=Sp-Cp
Given: SP=80
Let CP=x
so profit =0.25 x(given)
therfore 0.25x=80-x
therefore 1.25x=80
so x=20
answer is B
- by dhiren8182
Sun Mar 11, 2012 10:11 pm- Forum: Problem Solving
- Topic: GMATPrep Test 1 #2_PS Word Prob Basic #13
- Replies: 2
- Views: 848
- by dhiren8182
Sun Mar 11, 2012 10:04 pm- Forum: Problem Solving
- Topic: GMATPrep Test 1 #2_PS Rates Basic #21
- Replies: 2
- Views: 858
Que:w/x=x/y=y/z
w/x=x/y
so w=x^2/y
x/y=y/z
so z=y^2/x
therefore w/z=x^3/y^3
w/x=x^2.x/y.y^2
so w/x=w.x^2/z
- by dhiren8182
Mon Mar 05, 2012 12:18 am- Forum: Problem Solving
- Topic: fraction problem, seriously driving me bananas!
- Replies: 9
- Views: 1684
What About D?
Stem:Most parents make little use of baby clothing
Reasoning: Why ??Possibility that infants grow at a faster rate so parents do not get much use out of baby clothing.
- by dhiren8182
Tue Feb 28, 2012 3:46 am- Forum: Critical Reasoning
- Topic: Kaptest- Experts have a shot at this please
- Replies: 12
- Views: 2396