Question 842027
A construction crew of 150 men has enough food for 9 days.
That's; 9 * 150 = 1350 man-days of of food available
:
 How many days will the food last if the number of men is increased to 175?
Let d = no. of days for 175 men
175d = 1350
d = 1350/175
d = 7.7 days, or just say 7 days.