Question

n a hostle of 100 boys there arefood provision for 80 days if 60 more jion the hostle how long will these provision last?

Answer 1

See it's a inverse variation so
Boys Days
100. 80
160. x
so
100/160=x/80
160x= 100 × 80
x= 100 × 80/160
x=50 ans