A group of 156 tourists had enough food for a stay of 125 days in a mountain. however just before they left, n tourists left the group, this meant that the group had enough food to lengthen their stay for another 70 days. how many left the group? please show your steps.
1 answer:
It is an inverse relationship. There is enough food for 156*125=19500 person-days. If the food can last (125+70)=195 days, there are 19500 person-days / (195 days) = 100 persons
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