Question

A garrison has provisions for 360 persons for 20 days. If 60 persons leave the garrison, how long will the provisions last ?​

Answer 1

Answer:

If no. of people decrease , then provisions increase . Hence , they are in inverse proportions .

x¹y¹=x²y²

360 ×20 =300×y²

y²= 360×20/300

y²= 24

The garrison will last for 24 days .