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With her archaeologist husband, travels inspired

With her archaeologist husband, travels inspired several mystery novels by Agatha Christie ; travelers to Egypt can still stay at the Old Cataract Hotel, the model for the hotel in one of Christie's most famous A. With her archaeologist husband, travels inspired several mystery novels by Agatha Chr...

by melguy

Fri Jan 20, 2017 10:43 pm
Forum: Sentence Correction
Topic: With her archaeologist husband, travels inspired
Replies: 1
Views: 1799
by melguy

Wed Jan 11, 2017 8:01 am
Forum: Problem Solving
Topic: let's mix paints for GMAT prep !
Replies: 9
Views: 4303

4 is a factor of positive integer x and 9 is a factor of positive integer y Rephrase: x contains a 2 x 2 y contains a 3 x 3 Question is asking does x y contains a 42 (2 x 3 x 7)? Statement 1 x contains 2 x 7 From the question stem we know that y already contains 3. So we can say with certainty that ...

by melguy

Wed Jan 11, 2017 7:14 am
Forum: Data Sufficiency
Topic: If 4 is a factor of positive integer
Replies: 5
Views: 3017

Statement 1

Clearly insufficient.

Statement 2

|y| < 10 means y < 10 and y > -10

-10 < y < 10 (Therefore -9 is the smallest value).

Sufficient

Answer B

by melguy

Tue Jan 10, 2017 8:07 am
Forum: Data Sufficiency
Topic: y is an integer. What is the smallest possible value of y?
Replies: 5
Views: 3377

When W is divided by 4233, the remainder is 61.

So one possible value for W = 4233 + 61 = 4294.
Therefore 2W = 8588.

8588 / 83 => Remainder 39

Option C

by melguy

Tue Jan 10, 2017 7:58 am
Forum: Problem Solving
Topic: When positive integer W is divided by 4233
Replies: 4
Views: 2236

|x – 6| > |3x + 6| means x – 6 > 3x + 6 and x – 6 < -(3x + 6) Rearranging and solving both equations x – 6 > 3x + 6 x - 3x > 6 + 6 -2x > 12 x > -6 x – 6 < -(3x + 6) x - 6 < -3x -6 x + 3x < 6 - 6 4 x < 0 x < 0 So -6 < x < 0 (i.e 5 integers) Answer C

by melguy

Tue Jan 10, 2017 3:05 am
Forum: Problem Solving
Topic: Question about critical method in modulus inequaliy
Replies: 3
Views: 1766

Statement 1 x = 21 5x21 - 2 ------------- > -2 10 - 3x21 103 ------------- > -2 -53 Less than -2 > -2 Yes As we keep on adding the same values (positive large numbers greater than 20) to numerator and denominator the value will get closer to -1 i.e the value will keep on increasing. As a result the...

by melguy

Mon Jan 09, 2017 11:35 pm
Forum: Data Sufficiency
Topic: If x > 4, is (5x − 2)
Replies: 2
Views: 1834

Option A: The events are from the past so we must use past tense. Also, two set of events happened in the past one after the other. First event must use past perfect (had) and second event must use simple past. Option B : Present Perfect (have) suggests that an action or a result of action is still ...


If S is the sum of recriprocal

Please help me with this question.

I rounded up everything to .01 so the result should be slightly less than 1/10?

Thanks

by melguy

Thu Dec 29, 2016 1:37 am
Forum: Problem Solving
Topic: If S is the sum of recriprocal
Replies: 4
Views: 3722

Properties of zero

Zero is even integer.
Zero is neither positive nor negative.

In this question 24 - 2 = 22 would be the correct answer.

by melguy

Tue Dec 27, 2016 6:27 am
Forum: Problem Solving
Topic: Consecutive even numbers
Replies: 5
Views: 3113

Value of y

Please help me with this question.

If I plug in 2 for both x and y then A and E yield the same result. I cannot think of any other number that fits the criteria (x+y = xy). Is there a way to solve it with plugging in numbers?

Thanks

by melguy

Thu Dec 22, 2016 11:31 pm
Forum: Problem Solving
Topic: Value of y
Replies: 3
Views: 2103

A certain fruit stand sold apples for $0.70 each and bananas

A certain fruit stand sold apples for $0.70 each and bananas for $0.50 each. If a customer purchased both apples and bananas from the stand for a total of $6.30, what total number of apples and bananas did the customer purchase? (A) 10 (B) 11 (C) 12 (D) 13 (E) 14 Please help me with this question. I...

by melguy

Sat Dec 17, 2016 7:18 pm
Forum: Problem Solving
Topic: A certain fruit stand sold apples for $0.70 each and bananas
Replies: 2
Views: 3155

I used the Allegation method (which is best for mixture problems) and the answer seems to be correct. Experts please confirm if the method can be used for this problem also?

by melguy

Wed Dec 14, 2016 12:20 am
Forum: Problem Solving
Topic: Assemby line (ratio)
Replies: 6
Views: 3070

In parallelogram PQRS shown, if PQ = 4 and QR = 6 , what is the area of PQRS ? A. 8 B. 12 C. 24 D. 8√3 E. 12√3 Just to conclude it to the answer... We know that area of a parallelogram = Base * Height; We are given that Base = 6; however, the Height is not given. We know that in a 30°-60°-90Â...

by melguy

Tue Dec 13, 2016 8:14 pm
Forum: Problem Solving
Topic: Quantitative Revision from Richa Q #3
Replies: 4
Views: 2432

The Plexis Corporation, a leading computer chip manufacturer

The Plexis Corporation, a leading computer chip manufacturer, is currently developing a new chip, which is faster and more efficient than any computer chip currently in use. The new chip will be released for sale in twelve months. Plexis’ market research has shown that initial sales of the new chi...

by melguy

Tue Dec 13, 2016 6:21 am
Forum: Critical Reasoning
Topic: The Plexis Corporation, a leading computer chip manufacturer
Replies: 1
Views: 2183