the food in a camp lasts for 40 men for 20 days. if 10 more men join, how many days will the food last?  Choose the correct choice from the following answers.
A) 22 days B) 30 days C) 23 days D) 16 days E) 17 days
<gadget id="calculator">40 * 20</gadget>
<output>800</output>

<gadget id="calculator">40 + 10</gadget>
<output>50</output>

<gadget id="calculator">800 / 50</gadget>
<output>16</output>

<result>D</result>
the food in a camp lasts for 40 men for 20 days. if 10 more men join, how many days will the food last?
divide(multiply(40, 20), add(40, 10))
one man can consume the same food in 40 * 20 = 800 days . 10 more men join , the total number of men = 50 the number of days the food will last = 800 / 50 = 16 days . answer : d