Question

400 men have food items for 23 weeks. They are joined by 60 men. How long will the food items last

Answer 1

For 400 men the provision will last for 23 weeks i.e., 161 days.For 1 man the provision will last = (161* 400)/460 days.
=140 days
=140/7 weeks
=20 weeks
therefore the provision will last for 20 weeks for 460 men
$\bf{HOPE\ :IT \:HELPS \:YOU }$

Answer 2

As 400 men's have food items for 23 weeks and 60 are joining them then  400                  23 460                   X   Then cross multiple (460*23)/400=26.45