SOLUTION: A girl has a certain number of biscuits. If she eats 16 biscuits a day, they will last her six days less than if she eats 12 biscuits a day. How many biscuits does she have?

Algebra ->  Rate-of-work-word-problems -> SOLUTION: A girl has a certain number of biscuits. If she eats 16 biscuits a day, they will last her six days less than if she eats 12 biscuits a day. How many biscuits does she have?      Log On


   

Question 1158454: A girl has a certain number of biscuits. If she eats 16 biscuits a day, they will last her six days less than if she eats 12 biscuits a day. How many biscuits does she have?
Answer by ikleyn(52890) About Me  (Show Source):
You can put this solution on YOUR website!
.

Let "n" be the number of biscuits.

Then you have this equation to find "n"


    n%2F12 - n%2F16 = 6   days.


This equation is a literal translation of words to Math.


To solve equation, multiply both sides by 48


    4n - 3n = 6*48

    n       = 288.


ANSWER.  She has  288 biscuits.    (Not bad).

Solved.