SOLUTION: A group of 156 tourists had enough food for a stay of 125 days in the mountains. However, just before they left, n tourists left the group, and this meant that the group had enough

Question 1124665: A group of 156 tourists had enough food for a stay of 125 days in the mountains. However, just before they left, n tourists left the group, and this meant that the group had enough food to lengthen their stay for another 70 days. How many left the group?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
tourists are inversely proportional to days of food
125=k/156
k=19500
195=19500/156-n
multiply both sides by 156-n
30420-195n=19500
-195n=-10920
n=56
56 tourists left

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