600 men have provisions for 20 days. If 200 more men join them, for how many days will the provisions last now?  Select.
A) 15	B) 11	C) 10	D) 8	E) 7
600*20 = 800*x   x = 15.15nswer: 15
<result>A</result>
600 men have provisions for 20 days. If 200 more men join them, for how many days will the provisions last now?