SOLUTION: 1500 students have food for 24 days. if 500 other students joined and 20% food is also reduced to every students. how much longer will the food last?

Question 980497: 1500 students have food for 24 days. if 500 other students joined and 20% food is also reduced to every students. how much longer will the food last?
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
1500 students have food for 24 days. if 500 other students joined and 20% food is also reduced to every students. how much longer will the food last
:
Find how many normal food-days available
1500 * 24 = 36000 food-days
:
If 500 join there are 2000 students, students get 80% of the normal food (-20%)
:
let d = time food will last under these conditions
2000 * .8 * d = 36000
1600d = 36000
d = 36000/1600
d = 22.5 days, it won't last longer, 1.5 days less
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