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At a certain food festival, out of n stalls, of the total stalls wer
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18 Apr 2023, 01:09
18 Apr 2023, 01:09
Expert Reply
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Question Stats:
80% (01:08) correct
20% (00:45) wrong based on 10 sessions
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At a certain food festival, out of ‘n’ stalls, 1/5 of the total stalls were serving non vegetarian dishes only and 1/2 of the remaining stalls were serving vegetarian dishes only. The remaining stalls were serving a combination of vegetarian and non vegetarian dishes. How many stalls were serving the combination of vegetarian and non vegetarian dishes?
n/5
2n/5
3n/5
4n/5
n/2
n/5
2n/5
3n/5
4n/5
n/2
Re: At a certain food festival, out of n stalls, of the total stalls wer
[#permalink]
18 Apr 2023, 04:29
18 Apr 2023, 04:29
1
Its better to take n as lcm of 2 and 5.
Let n = 100
Non Veg only= 20
Veg only only = 80/2 = 40
Both = 40
Substitute n in options
Option B
Note: This question is simple just to do with normal fractions and n. But considering recent GRE questions have been getting long and tricky. Percentages might not be more straight forward. They may ask 9.09% (1/11), 11.11% (1/9), 62.5%(5/8). Remember some fractions beforehand which help in exam
Let n = 100
Non Veg only= 20
Veg only only = 80/2 = 40
Both = 40
Substitute n in options
Option B
Note: This question is simple just to do with normal fractions and n. But considering recent GRE questions have been getting long and tricky. Percentages might not be more straight forward. They may ask 9.09% (1/11), 11.11% (1/9), 62.5%(5/8). Remember some fractions beforehand which help in exam
gmatclubot
Re: At a certain food festival, out of n stalls, of the total stalls wer [#permalink]
18 Apr 2023, 04:29
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