The food in a camp lasts for 20 men for 40 days. If ten more men join, the food will last for how many days ?  Choose the correct choice from the following answers.
A) 40 days
B) 27 days
C) 37 days
D) 50 days
E) 45 days
one man can consume the same food in 20*40= 
<gadget id="calculator">20*40</gadget>
<output>800</output>
800 days.   10 more men join, the total number of men= 20   The number of days the food will last = 800/30 = 27 days.   ANSWER:27 days
<result>B</result>
The food in a camp lasts for 20 men for 40 days. If ten more men join, the food will last for how many days ?