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100 points for $49 worth of Veritas practice GMATs FREE VERITAS PRACTICE GMAT EXAMS Earn 10 Points Per Post Earn 10 Points Per Thanks Earn 10 Points Per Upvote ## What percent of children in class K have been to London? tagged by: AAPL ##### This topic has 2 member replies ### Top Member ## What percent of children in class K have been to London? ## Timer 00:00 ## Your Answer A B C D E ## Global Stats Difficult Economist GMAT What percent of the children in class K have been to London? 1) The number of boys in class K is equal to the number of girls in class K. 2) Among the children of class K, the number of girls that have been to London is equal to the number of boys that have been to London. OA E ### Top Member Junior | Next Rank: 30 Posts Joined 07 Oct 2017 Posted: 22 messages What percent of the children in class K have been to London? 1) The number of boys in class K is equal to the number of girls in class K. Let Number of girls = number of boys = x; Nothing related to number of children visited London is given Insufficient 2) Among the children of class K, the number of girls that have been to London is equal to the number of boys that have been to London. Let Number of girls Visited London = number of boys Visited London = y But, we don't know the Actual number of students of exact value of number of students visited to London Insufficient 1 and 2 together, But, we don't know the Actual number of students of exact value of number of students visited to London Insufficient Option E is correct ### Top Member Legendary Member Joined 02 Mar 2018 Posted: 772 messages Followed by: 1 members Statement 1 The number of boys in the class K is equal to the number of girls in class K. This means that the ratio of boys to girls in class k is equal but this is not enough to give us a definite answer, hence statement 1 is INSUFFICIENT. Statement 2 Among the children of class K the number of girls that have been to London is equal to the number of boys that have been to London. There is no information about the total number of students in class K, hence we cannot find the % of students that have been to London. Combining statement 1 and 2 together Total no of boys = Total number of girls Let total number of boys = 50 50 boys = 50 girls Total no of students in class K =100 boys and girls Since they are in the same ratio no of girls that have been to London = no of boys that have been to London If no of girls that have been to London =10 Then % of children in class K that have been to London = 20% If no of girls that have been to London =5 Then % of children in the class K that have been to London = 10% Information available is not enough to to get a specific percentage. Both statement together are not SUFFICIENT. $$answer\ is\ Option\ E$$ • Magoosh Study with Magoosh GMAT prep Available with Beat the GMAT members only code • FREE GMAT Exam Know how you'd score today for$0

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