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Initial no. for A = A, no. for B = B , no. toatal = A+Brahul.s wrote:last year, all registered voters in country X voted for either A or B. this year, the number of A voters increased by 10%, while the total number of B voters increased 5%. no other votes were cast. if the number of total voters increased 8% what fraction of the voters voted for A this year?
[spoiler]OA is 11/18[/spoiler]
last year let voters for A=a and that for B=brahul.s wrote:last year, all registered voters in country X voted for either A or B. this year, the number of A voters increased by 10%, while the total number of B voters increased 5%. no other votes were cast. if the number of total voters increased 8% what fraction of the voters voted for A this year?
[spoiler]OA is 11/18[/spoiler]
rahul.s wrote:last year, all registered voters in country X voted for either A or B. this year, the number of A voters increased by 10%, while the total number of B voters increased 5%. no other votes were cast. if the number of total voters increased 8% what fraction of the voters voted for A this year?
[spoiler]OA is 11/18[/spoiler]
Its a simple algebra problem. You can think of it logically in terms of %ge increase and decrease similar to problem of profit and loss and u will get to the correct answer.bhumika.k.shah wrote:hey rahul,
i dont know how this is a weighted average problem .
But with two equations and two variables u can get the values of A and B .
The phoenix has solved it quite well .
Do let me know if u need any further clarification
Happy to help
rahul.s wrote:last year, all registered voters in country X voted for either A or B. this year, the number of A voters increased by 10%, while the total number of B voters increased 5%. no other votes were cast. if the number of total voters increased 8% what fraction of the voters voted for A this year?
[spoiler]OA is 11/18[/spoiler]
