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hence $d is required to purchase $$\frac{100dw}{c}$$ Ans. (A) _________________ Regards, PKN Rise above the storm, you will find the sunshine Senior Manager Joined: 07 Jul 2012 Posts: 379 Location: India Concentration: Finance, Accounting GPA: 3.5 Re: If w widgets cost c cents, how many widgets can you get for d dollars? [#permalink] ### Show Tags 05 Sep 2018, 00:30 For c cents, w widgets can be bought ......1 cent.., $$\frac{w}{c,}$$ widgets can be bought .......100d cents...., $$\frac{w}{c}$$*100d widgets can be bought = $$\frac{100dw}{c}$$ Answer: A. _________________ Kindly hit kudos if my post helps! Senior Manager Joined: 29 Dec 2017 Posts: 388 Location: United States Concentration: Marketing, Technology GMAT 1: 630 Q44 V33 GMAT 2: 690 Q47 V37 GMAT 3: 710 Q50 V37 GPA: 3.25 WE: Marketing (Telecommunications) If w widgets cost c cents, how many widgets can you get for d dollars? [#permalink] ### Show Tags 15 Sep 2018, 07:40 One of my favorite approaches for questions with all variables is plug-in method. Let w=100 pcs, c=100 cents, d =$1 (actually d=c, so for 'd' we can buy the same number of 100 pcs - now we have to find an option that will give us the same 100 pcs.). Only option A gives us 100. Hence this is the right choice.

Now if you wonder how efficient this method is: 01:10 for the question above and I got the right answer, with my brain in a low level of energy consumption mode. Belive me, the saved brain stamina will be very useful for hard level questions later on the test. I highly recommend to use algebra only in cases in which it is really necessary.
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Re: If w widgets cost c cents, how many widgets can you get for d dollars?  [#permalink]

### Show Tags

15 Sep 2018, 07:51
Bunuel wrote:
If w widgets cost c cents, how many widgets can you get for d dollars?

(A) $$\frac{100dw}{c}$$

(B) $$\frac{dw}{100c}$$

(C) $$100cdw$$

(D) $$\frac{dw}{c}$$

(E) $$cdw$$

1 Dollar = 100 Cents

So, d Dollar = 100 d Cents

For c cents w widgets can be bought

So, For 1 cents $$\frac{w}{c}$$ widgets can be bought

Thus, for 100 d Cents $$\frac{100dw}{c}$$ widgets can be bought, Answer must be (A)
_________________

Thanks and Regards

Abhishek....

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Re: If w widgets cost c cents, how many widgets can you get for d dollars? &nbs [#permalink] 15 Sep 2018, 07:51
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