Question

In a fort 300 men had provision for 90 days. After 20 days 50 men left fort. How long would the food last at the same rate​

Answer 1

No. of men. No of days

300(x1) 70(y1)

250(x2) ? (y2)

They are inversely proportional.

x1/x2=y2/y1

300/250=y2/70

y2=300*70/250

y2=84days