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Of the retailers surveyed, 65 percent owned an online store, and 75 percent owned a physical store. What percent of the retailers owned a physical store but did not own an online store?

(1) 15 percent of the retailers owned an online store but not a physical store.

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.

Online = 65%
Physical = 75%
Case I:
15% owned online but not physical
Thus owning both = 65 – 15 = 50%
And owning only physical = 75 – 50% = 25%


Case II:
Online + physical = 5* none
None = x
Thus 65 + 75 + x – 5x = 100%
Thus x = 50% and percent owning only physical = 25%

Thus D - both are sufficient
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Given: Of the retailers surveyed, 65 percent owned an online store, and 75 percent owned a physical store.
Asked: What percent of the retailers owned a physical store but did not own an online store?


Online StoreNot Online StoreTotal
Offline Store75%
Not Offline Store25%
Total65%35%100%

(1) 15 percent of the retailers owned an online store but not a physical store.

Online StoreNot Online StoreTotal
Offline Store65%-15%=50%75%-50%=25%75%
Not Offline Store15%25%-15%=10%25%
Total65%35%100%
The percent of the retailers owned a physical store but did not own an online store = 25%
SUFFICIENT

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.


Online StoreNot Online StoreTotal
Offline Store5x75%-5x=35%-x75%
Not Offline Storex25%
Total65%35%100%

75%-5x = 35%-x
4x = 40%
x =10%


Online StoreNot Online StoreTotal
Offline Store50%25%75%
Not Offline Store15%10%25%
Total65%35%100%

The percent of the retailers owned a physical store but did not own an online store = 25%
SUFFICIENT

IMO D
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Bunuel
Of the retailers surveyed, 65 percent owned an online store, and 75 percent owned a physical store. What percent of the retailers owned a physical store but did not own an online store?

(1) 15 percent of the retailers owned an online store but not a physical store.

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.


 


This question was provided by GMAT Club
for the Around the World in 80 Questions

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we can use table or overlapping set to solve this question. I will use table. We have to find the yellow cell.

(1) 15 percent of the retailers owned an online store but not a physical store.

As we know that 15% is the overlap between online and the physical store. The percentage of the overlap (yellow region) is 65-15 = 50.

Sufficient.

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.

Let the percentage of neither = x.

Using the table shown we can find that 75 - 5x + x = 35

We will have an unique value. Hence, this information is also sufficient.



IMO D
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Bunuel
Of the retailers surveyed, 65 percent owned an online store, and 75 percent owned a physical store. What percent of the retailers owned a physical store but did not own an online store?

(1) 15 percent of the retailers owned an online store but not a physical store.

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.

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let S1 = retailers who owned only online store, S2 = owned both stores, S3 = owned physical store.
Also S1+S2 = 65, S2+S3 = 75

(1) S1 = 15.
So S2 and S3 can be found. Sufficient.

(2) Let none = x.
So S2 = 5x.
S1 = 65-5x and S3 = 75-5x, total = 100 so x can be solved. Sufficient.

IMO D.

Bunuel
Of the retailers surveyed, 65 percent owned an online store, and 75 percent owned a physical store. What percent of the retailers owned a physical store but did not own an online store?

(1) 15 percent of the retailers owned an online store but not a physical store.

(2) The number of the retailers who owned both an online and a physical store was five times the number of the retailers who did not own either an online or a physical store.


 


This question was provided by GMAT Club
for the Around the World in 80 Questions

Win over $20,000 in prizes: Courses, Tests & more

 


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