In a remote army camp, 10 soldiers have the ration for 21 days. If 3 soldiers leave the camp, for how many days will the ration be sufficient?
A) 14
B) 15
C) 21
D) 60
E) 30

Question

Quizplus · Accepted Answer

The total ration available is for 10 soldiers for 21 days. If 3 soldiers leave, there will be 7 soldiers left. The ration will now last longer because it is being consumed by fewer people. The total number of soldier-days the ration can support is 10 soldiers * 21 days = 210 soldier-days. If there are now 7 soldiers, the ration will last for 210 soldier-days / 7 soldiers = 30 days.

In a Remote Army Camp, 10 Soldiers Have the Ration