Search found 73 matches
PS (Word Translations)
At the end of each year, the value of a certain antique watch is c percent more than its value one year earlier, where c has the same value each year. If the value of the watch was k dollars on January1, 1992, and m dollars on January 1, 1994, then in terms of m and k, what was the value of the watc...
- by rintoo22
Wed May 01, 2013 12:34 pm- Forum: Problem Solving
- Topic: PS (Word Translations)
- Replies: 3
- Views: 1362
DS (Number Sysytem)
If the sum of three integers is even, is the product of the three integers a multiple of 4 ? (1) All three integers are equal. (2) All three integers are even. A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alo...
- by rintoo22
Wed May 01, 2013 12:24 pm- Forum: Data Sufficiency
- Topic: DS (Number Sysytem)
- Replies: 4
- Views: 1245
DS(Number System)
Can someone post the correct Question. Me thinks that Statement 2 is invalid. Please help. Question as Follows. If R = P/Q, is R= P ? (1) P > 50 (2) 0 < Q = 20 A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient. B. Statement (2) ALONE is sufficient, but statement (1) alo...
- by rintoo22
Wed May 01, 2013 12:04 pm- Forum: Data Sufficiency
- Topic: DS(Number System)
- Replies: 1
- Views: 1192
- by rintoo22
Wed May 01, 2013 11:57 am- Forum: Problem Solving
- Topic: PS (Geomtery)
- Replies: 3
- Views: 1294
In right triangle ABC, BC is the hypotenuse. If BC is 13 and AB + AC = 15, what is the area of the triangle? A. 2√7 B. 2√14 C. 14 D. 28 E. 56 Let AB = x and AC = y Given AB + AC = 15 => x+y=15.......(1) Hypotenuse = 13 Therefore x^2+y^2 = 169 .......(2) Now solve eq 1 (x+y)^2=225 x^2 + y^2 + 2x...
- by rintoo22
Wed Apr 24, 2013 2:01 pm- Forum: Problem Solving
- Topic: Area of a Triangle
- Replies: 4
- Views: 2421
Answer E. In my opinion.The distance from town A to town B is five miles. C is six miles from B. Which of the following could be the distance form A to C?
I 11
II 1
III 7
Traingle Inequality rule satify for option III. And I and II can be on the same line.
- by rintoo22
Wed Apr 24, 2013 4:20 am- Forum: Problem Solving
- Topic: The distance from town A to town B is five miles. C is six
- Replies: 3
- Views: 13669
The 6th term of a geometric series falls between 4090 and 5010. What could possibly be the first term of the series if the first term and common ratio are equal? 3 4 5 6 7 Basically the question is asking What to the power of 6 falls in the range of 4090 - 5010. To find power of 6 for the options 3...
- by rintoo22
Tue Apr 23, 2013 12:28 pm- Forum: Problem Solving
- Topic: The 6th term of a geometric series falls between 4090 and 50
- Replies: 4
- Views: 1238
If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same area as the original rectangle would result. Find the perimeter of the original rectangle. I would start with second half of the question which states a square with the same area . T...
- by rintoo22
Tue Apr 23, 2013 12:14 pm- Forum: Problem Solving
- Topic: If the length of a certain rectangle is decreased
- Replies: 4
- Views: 10119
how did you derive the above equation . Could you please elaborate ? Important points in the question 1. Largest angle measures 110 2. Interior angles in a polygon are consecutive integers. Let x be the difference in consequitive integers (angles) 110 + (110-x) + (110-2x) + (110-3x) + (110-4x)........
- by rintoo22
Tue Apr 16, 2013 8:57 pm- Forum: Problem Solving
- Topic: The measures of the interior angles in a polygon
- Replies: 6
- Views: 6012
The measures of the interior angles in a polygon are consecutive integers. The largest angle measures 110 degrees. How many sides does this polygon have? 110 + 110-x + 110-2x + 110-3x + 110-4x = 540 550 - 10x = 540 x = 1 ...(1) Now put the value of x 110 + 109 + 108 + 107 + 106 = 540. Option (A) is...
- by rintoo22
Tue Apr 16, 2013 1:06 pm- Forum: Problem Solving
- Topic: The measures of the interior angles in a polygon
- Replies: 6
- Views: 6012
Therefore 31 = (2^x)-3f(x) = (2^x) -3 and f(x) = 31
consider x=5, then (2^5)-3 = 29
consider x=6, then (2^6)-3 = 61
31 falls between 29 and 61. Hence the answer should be E.
- by rintoo22
Tue Apr 16, 2013 12:49 pm- Forum: Problem Solving
- Topic: GMAT Focus Functions Question
- Replies: 4
- Views: 1477
If 125% of j is equal to 25% of k, 150% of k is equal to 50% of l, and 175% of l is equal to 75% of m, then 20% of m is equal to what percent of 200% of j ? Thanks for all the good approaches. I will like to post one more. 125% of j is equal to 25% of k => 5j=k ....(1) 150% of k is equal to 50% of ...
- by rintoo22
Sun Apr 14, 2013 11:33 am- Forum: Problem Solving
- Topic: Percentage
- Replies: 22
- Views: 11385
If x + y = 24 and 2x-7y=15, which of the following is equal to 13? Simultaneous eq can give you the value of x and y. I did the problem myself and realised that I must keep the values in fraction. So dont simplify it further. Then substituting the value of x and y in each equation should get you th...
- by rintoo22
Sat Apr 13, 2013 10:49 am- Forum: Problem Solving
- Topic: GMAT Focus Question -- Any Simpler Methods?
- Replies: 3
- Views: 1806
bryan22583 wrote: Which of the following is equivalent to [ (2b)¯¹ - (2¯¹)b ] / (b¯¹ + 1¯¹)? A) (1-b)/2 B) (b-1)/2 C) (b^2)-1/2b D) (1-b^2)/2b E) 2b/(1-b^2) We can simplify the eq. [ (2b)¯¹ - (2¯¹)b ] / (b¯¹ + 1¯¹) [1/2b-b/2]/[1/b+1] [(1-b^2)b/2b]/(1+b)] [(1+b)(1-b)/2(1+b)] (1-b)/2 ...
- by rintoo22
Sat Apr 13, 2013 5:50 am- Forum: Problem Solving
- Topic: GMAT Focus Exponents/Fraction Question
- Replies: 3
- Views: 1745
Hi RikaMueller, You must remember the defn of Standard deviation."SD indicates how far from the mean the data points typicall fall". If you just pay attention to what the average dpread is doing you shoudl be fine. It is unlikely that GMAT will ask you to calc the SD. So change in SD 0.3 a...
- by rintoo22
Sat Apr 13, 2013 4:09 am- Forum: Problem Solving
- Topic: Vending Machine Standard Deviation
- Replies: 12
- Views: 5842