The food in a camp lasts for 30 men for 40 days. If ten more men join, how many days will the food last?
A. 20 days
B. 30 days
C. 35 days
D. 28 days
Answer:B
The food in a camp lasts for 30 men for 40 days. If ten more men join, how many days will the food last?
A. 20 days B. 30 days C. 35 days D. 28 days