Final answer:
The question is incomplete and cannot be accurately answered without additional information such as the raft's dimensions and the weight of the students. Without further information it is not possible to accurately select an answer from the options provided: (a) 2, (b) 3, (c) 4, (d) 5.
Step-by-step explanation:
The question "Square raft floating in water, how many students on the raft?" seems to be related to physics, specifically to the topic of buoyancy and Archimedes' principle. However, the question doesn't provide enough information to determine the number of students that can float on the raft without knowing the raft's buoyancy, the weight of each student, and the density of the water. In physics, Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces.
To solve a problem like this one would require additional information such as: the dimensions of the raft, the material the raft is made from, the density of the raft, the density of the water, and the average weight of the students. Based on these parameters, one could calculate the maximum load the raft can support without sinking.
As a tutor, it is important to guide students towards understanding the concepts that apply to this question, such as density, displacement, weight, and the importance of these factors in calculating buoyancy. Due to the lack of specific details in the question, an exact number of students cannot be provided. Therefore, without further information it is not possible to accurately select an answer from the options provided: (a) 2, (b) 3, (c) 4, (d) 5.