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A camp has food for 120 soldiers for 30 days. After 5 days, 30 more soldiers join, as shown. For how many more days will the remaining food last?

Class 8Direct and Inverse ProportionsDirect and Inverse Proportions
  • A20 days
  • B24 days
  • C25 days
  • D31.25 days

Step-by-Step Solution

After 5 days the food left would feed 120 soldiers for 25 days, i.e. soldier-days. Now there are 150 soldiers: days. (24 days forgets the 5 days already used.)
Answer: A) 20 days

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