Question
In a party, 60% of the invited guests are male and 40% are female. If 80% of the invited guests attended the party and if all the invited female guests attended, what would be the ratio of males to females among the attendees in the party?
Official answer and solution
- Official answer
- B
- From
- Official GATE 2018 answer key
Solution
Assume a baseline total of 100 invited guests and compute the number of attending males and females.
Let the total number of invited guests be 100.
- Invited males = 60
- Invited females = 40
Total attendees = 80% of 100 = 80.
Since all 40 invited females attended, the number of female attendees is 40.
The number of male attendees is .
The ratio of males to females among the attendees is .
B
The answer is the one in the official GATE answer key. The solution is this site's own explanation.
Source
- Paper
- GATE 2018 Computer Science and Information Technology (CS)
- Question
- 8 of 65, printed as GA Q.8
- Section
- General Aptitude
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