Search found 555 matches


Hello Everyone! Let's tackle this question, one thing at a time, and narrow down our choices to the right one! To start, let's take a quick look at the original question and highlight any major differences between the options in orange : Of all the scandals of 1984 election season, maybe none is con...


Hello Everyone! This is a great example of a GMAT question that focuses on pronoun-antecedent agreement and collective nouns ! Let's start by taking a quick look at the original question and highlighting any pronouns we can find in orange : The company will cover the entire cost of the training, req...


Hello Everyone! Let's tackle this question, one thing at a time, and narrow down our choices to the right one! To begin, let's take a quick look at the options and highlight any major differences in orange : Shunned by literary critics for decades as something fit only for youthful consumption, the ...


Hello Everyone! Let's tackle this question, one thing at a time, and narrow it down to the correct choice! To begin, here is the original question with any major differences between the options highlighted in orange: In the past several years, astronomers have detected more than 80 massive planets, ...


Hello M7MBA. Let's take a look at your question. We have one prime number "a" that is greater than 2 and less than 6. Hence a=3, 5. The other primer number "b" is greater than 13 and less than 25. Hence b=17, 19, 23. Hence, the possible products are: If a=3 then if b=17----------...

by EconomistGMATTutor

Mon Feb 26, 2018 3:20 am
Forum: Problem Solving
Topic: The product P of two prime numbers is between 9 and 55.
Replies: 2
Views: 2050

Which of the following has the same value as 5^6? A. 30 B. 25^2 C. 50^3 D. 125^2 E. 250^3 The OA is the option D . Experts, how can I rewrite 5^6 to find the correct answer? Can you help me? I don't know how to solve it. Hello M7MBA. Let's see. How you asked, we have to rewrite the expression as fo...

by EconomistGMATTutor

Mon Feb 26, 2018 2:58 am
Forum: Problem Solving
Topic: Which of the following has the same value as 5^6?
Replies: 3
Views: 1473

Hello M7MBA. Let's take a look at your question. We have two numbers which product is 36, that is to say, $$a\cdot b=36.$$ The options for a and b are: a=1, b=36 --------a+b=37. a=2, b=18 --------a+b=20. a=3, b=12 --------a+b=15. a=4, b=9 ----------a+b=13. a=6, b=6-----------a+b=12. b=9, a=4--------...

by EconomistGMATTutor

Mon Feb 26, 2018 2:52 am
Forum: Problem Solving
Topic: Which one of the following is the minimum value of
Replies: 3
Views: 1911

If the surface area of a certain cube is 2400, what is its volume? A. 8000(√6)^3 B. 1000(√6)^3 C. 8000 D. 6400 E. 4000 The OA is C . We know that the surface area of a cube is 6s^2, then $$6s^2=2400\ \Rightarrow s^2=400\ \Rightarrow s=20$$ Also, we know that the volume of a cube is s^3, then $$...


Hello LUANDATO. We have to look at this question carefully. Let's say that the selling price is $100. Then, 20% profit means that the cost price is $80 and $20 is the profit obtained. Now we need to find what percent of $80 represents $20: $80--------------100% $20---------------x% Therefore, $$x=\f...


Jerry and Ross decide to have a footrace. They run 1,000 meters. Jerry runs 5 meters per second and Ross 4 meters per second. Halfway through the race, Jerry realizes he is ahead and stops running for one full minute before finishing the race at the same speed. Who wins the race? A. Jerry B. Ross C...


Hello AAPL. Let's take a look at your question. The following image shows how the walked. https://s10.postimg.org/5wsl1g0et/Rectangle.png Now, we can see that the distance walked by Peter is: $$\sqrt{160^2+300^2}=\sqrt{25600+90000}=\sqrt{115600}=340\ ft$$ On the other hand, the distance walked by Ja...


Hello Roland. Let's take a look at your question. There is something that is not clear in the wording. Watching the answers, this PS should be solved like this: In each case, the orange candy is the cheapest, therefore in both cases, the discount will be 30 cents. Hence, the difference is $0. The co...

by EconomistGMATTutor

Tue Feb 20, 2018 2:08 am
Forum: Problem Solving
Topic: In a certain candy store in New York
Replies: 2
Views: 814

The area of one square is x^2 + 10x + 25 and the area of another square is 4x^2 - 12x + 9. If the sum of the perimeters of both squares is 32, what is the value of x? A. 0 B. 2 C. 2.5 D. 4.67 E. 10 The OA is the option B. What are the equations that I should use here? Experts, may you tell me how t...

by EconomistGMATTutor

Mon Feb 19, 2018 12:08 pm
Forum: Problem Solving
Topic: The area of one square is x^2 + 10x + 25 and the area
Replies: 4
Views: 2223

Hello AAPL. Let's take a look at your question. Let's assume Dawn speed is 6mts/sec and Paul speed= 1mts/sec. The combined speed is 5 mts/sec. If she ran for 2 minutes, then their distance is (5mts/sec)*(120sec)=600mts. Paul running at 1m/sec covers 600 meters in 600 secs = (600sec)*(1minute/60 sec)...

by EconomistGMATTutor

Sun Feb 18, 2018 4:19 am
Forum: Problem Solving
Topic: Dawn chases her young brother Paul. She runs at a...
Replies: 2
Views: 778

A telephone company charges x cents for the first minute of a call and charges for any additional time at the rate of y cents per minute. If a certain call costs $5.55 and lasts more than 1 minute, which of the following expressions represents the length of that call, in minutes? (A) $$\frac{555-x}...

by EconomistGMATTutor

Sun Feb 18, 2018 3:38 am
Forum: Problem Solving
Topic: A telephone company charges x cents for the
Replies: 2
Views: 1077