1)Rs,6500 were divided equally among a certain number of persons.if there had been 15 more person,each would have got Rs.30 less,find the original number of persons? :confused:

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- Aug 21st 2006, 12:50 AManjanaquadratic equations
1)Rs,6500 were divided equally among a certain number of persons.if there had been 15 more person,each would have got Rs.30 less,find the original number of persons? :confused:

- Aug 21st 2006, 05:06 AMQuickQuote:

Originally Posted by**anjana**

now write out the second equation:

therefore:

Multiply both sides by "p+15"

multiply both sides by p:

move everything to one side:

subtract:

and now you can use the quadratic formula (I hope you know how to do that) - Aug 21st 2006, 05:22 AMQuick
I might as well continue:

using the quadratic formula you get:

substitute:

multiply:

add:

find sqrt:

split equation:

therefore, after throwing away the negative answer, there were 50 people