If x 0, x/50 + x/25 is what percent of x?

Question

If x > 0, x/50 + x/25 is what percent of x?

A. 6%
B. 25%
C. 37 1/2%
D. 60%
E. 75 %

stoolfi · Accepted Answer

Just plug and chug. Since the question asks for percents, pick 100. (but any number will do.)

100/50 + 100/25= 2+4 =6

6 is 6% of 100.

stolyar · Answer

a direct approach is also not bad

(3X/50)(100/X)=6

bkastan · Answer

A lot of people jump to a smart number of 100. The confusing part can come when you are asking "what percent of x" (i.e "what percent of 100"). Therefore, you can avoid this by choosing a different smart number which is a multiple of 50 and 25 -->  50 .

Therefore:
if X=50
 \frac{50}{50}  +  \frac{50}{25}  = 1 + 2 = 3

Because we need to figure out the percent of X, we must then take our new fraction  \frac{3}{50}  and multiply by 100 to form a percent. Cross multiplication will work fine.  \frac{3}{50}  =  \frac{x}{100}

Notice that you can just multiple  \frac{3}{50}  *  \frac{2}{2}  because this is essentially multiplying by 1 and that will change the denominator to 100 leaving you with  \frac{6}{100}  or 6%

Written differently: notice that the denominator in  \frac{3}{50}  is 50. Thus, you can make the denominator 100 in order to get a percentage. To do so, you must multiply 50 * 2. Do not forget that if you multiply the denominator by 2, you must also multiply the numerator by 2.

Answer = A

CareerGeek · Answer

Take x as 100.

x/50 + x/25 = 100/50 + 100/25 = 2 + 4 = 6

So 6%. Option A

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aksh123456123456 · Answer

Can someone please explain the solution ? Bunuel

Bunuel · Answer

If x > 0, x/50 + x/25 is what percent of x?

A. 6%
B. 25%
C. 37 1/2%
D. 60%
E. 75%

\frac{x}{50} + \frac{x}{25} = \frac{3x}{50} .

So, we need to find 3x/50 is what percent of x:

\frac{\frac{3x}{50}}{x}*100=6\% .

Answer: A.

RobertVericPrep · Answer

Part/whole = P/100 = P%

Here the "whole" is x itself, the "part" is actually the sum of 2 parts, x/50 and x/2x5

Part/whole = (x/50 + x/25)/x = p/100

Sometimes when you answer a percent question it's a good idea to pick numbers, and it's often easy to pick the number 100.

Let's let say x equals 100

Now our equation is part/whole = (4 + 2)/100 = P/100

P = 6

The answer is 6%

Answer A

If x > 0, x/50 + x/25 is what percent of x?

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If x > 0, x/50 + x/25 is what percent of x?

Prep Toolkit

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