Consider the given argument and decide which of the given assumptions is (are) implicit.
Argument: An army general said 'Shoot Now' to the soldier.
Assumptions:
1. The soldier knows where and what to shoot.
2. The army general doesn't know to shoot.
Three triangles are marked out of a bigger triangle at the three vertices such that each side of each of the smaller triangles is one-third as long as each corresponding side of the bigger triangle. The ratio of the area of the three small triangles taken together to that of the rest of the bigger triangle is?