At the beginning of 2011, Company X created a list of n charities, and committed to donating 10% of its prots for the year to these charities, donating an equal amount to each charity. However, during the year, Company X removed a charities from this list, and donated 10% of its prot in equal amounts to each of the remaining charities on the list. If the Wesley Homeless Shelter was one of the charities on the list which received a donation from Company X, which of the following represents, in terms of n and a, the percent increase in the amount the Wesley Homeless Shelter received because the a charities were removed from the list?	Choose the correct choice from the following choices:  A) 100n/a  B) 100a/(n-a)  C) 100(n-a)/n  D) 100n/(n-a)  E) "100(n-a)" divided by "a"
Sol:   Let profit be "P"   for n charities - each get p/n   when a charities are removed - each get p/(n-a)   increase will be (p/(n-a)) - (p/n) = pa/(n-a)*n   Increase % will be (pa/(n-a)*n) / (p/n) multiplied by 100.   result will be 100a/(n-a)   ANSW"100(n-a)" divided by "a"R:"100(n-a)" divided by "a"
<result>E</result>
At the beginning of 2011, Company X created a list of n charities, and committed to donating 10% of its prots for the year to these charities, donating an equal amount to each charity. However, during the year, Company X removed a charities from this list, and donated 10% of its prot in equal amounts to each of the remaining charities on the list. If the Wesley Homeless Shelter was one of the charities on the list which received a donation from Company X, which of the following represents, in terms of n and a, the percent increase in the amount the Wesley Homeless Shelter received because the a charities were removed from the list?