Four people are to be selected to receive a modeling contract from a group of 10 men, 5 women and 2 children. How many ways are possible in which 2 men, one woman and one child will receive a contract? A. 90 B. 180 C. 225 D. 450 E. 900 The OA is the option D . What is the best approach to solving t...

Which of the following best approximates (0.2)·(0.3)·(0.4)·(0.5)=? A. 0.1 B. 0.01 C. 0.001 D. 0.0001 E. 0.00001 The OA is the option B . Is there a method to solving this PS question in a fast way? Experts, I'd be thankful for your help. <i class="em em-disappointed"></i> Hi Vjesus12. ...

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If 8^(-x) < 1/32^3, what is the smallest integer value of x? A. 4 B. 5 C. 6 D. 8 E. 9 The OA is C . Is there an easy way to solve this PS question? Experts, can you help me? Thanks in advanced. Hello Vjesus12. Let's take a look at your question. We have to rewrite the power and then we just have to...

Cindy paddles her kayak upstream at m kilometers per hour and then returns downstream the same distance at n kilometers per hour. How many kilometers upstream did she travel if she spent a total of p hours for the round trip? $$A.\ mnp$$ $$B.\ \frac{mn}{p}$$ $$C.\ \frac{m+n}{p}$$ $$D.\ \frac{mnp}{n...

https://s18.postimg.org/xs2tuj0k5/2016-08-25_1226.png The flat triangular lot depicted above is available for development. If X + X/2 = 150 meters, what is the area of the lot in square meters? $$A.\ 125$$ $$B.\ 150\sqrt{3}$$ $$C.\ 1,500$$ $$D.\ 1,250\sqrt{3}$$ $$E.\ 2,500\sqrt{3}$$ The OA is D . I...

If 4x-12 >= x + 9, which of the following must be true?

$$If\ 4x-12\ge x+9,$$ Which of the following must be true? A. x > 6 B. x < 7 C. x > 7 D. x > 8 E. x < 8 The OA is A. Experts, to solve this PS question, can I isolate the x and get the answer, right? $$3x\ge21$$ $$x\ge7$$ But why only A is true? What about C and D? Experts, any suggestion? Thanks i...

If 5n/(4n - x) = (0.788)^(-1) , then x/n = A) 3/500 B) 3/250 C) 3/125 D) 3/50 E) 3/25 Source: www.gmatprepnow.com Answer: D Difficulty level: 650 - 700 Hi Brent@GMATPrepNow, Let's take a look at your question. $$\frac{5n}{\left(4n-x\right)}=\left(0.788\right)^{-1}$$ $$\frac{5n}{\left(4n-x\right)}=\...

$$If\ \frac{2^{\left(x+y\right)^2}}{2^{\left(x-y\right)^2}}=2,$$ What is the value of xy? (A) -1/4 (B) 1/2 (C) 0 (D) 1/4 (E) 1/2 The OA is D. Would any expert please break down the steps to solve this PS question, step by step? I tried to solve it but I can't get the correct answer. I need your hel...