SOLUTION: If 480 students would eat the food in 16 weeks,but after two weeks, 80 students join, how long will it take them to finish the remaining food?

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: If 480 students would eat the food in 16 weeks,but after two weeks, 80 students join, how long will it take them to finish the remaining food?      Log On


   



Question 751079: If 480 students would eat the food in 16 weeks,but after two weeks, 80 students join, how long will it take them to finish the remaining food?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
If 480 students would eat the food in 16 weeks,
Find the number of "food-days" available
480*16*7 = 53760 food days
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but after two weeks, 80 students join, how long will it take them to finish the remaining food?
Find number of food-days remaining after two weeks
53760 - (480*14) = 47040
Find how many days this will last with the additional students:
47040%2F%28480%2B80%29 = 84 days of food which is 84/7 = 12 weeks
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