Neither Albert nor Lloyd found a correct solution to the problem.
Lloyd correctly calculates the number of students in the two vans (6 + 6 = 12), but he doesn't understand that he should simply multiply the number of vans by the number of students each van can hold instead of adding them.
Albert incorrectly suggests that multiplying the total number of students in the school (250) by 2 to find the number of math club students is the right approach. This calculation has no relevance to the problem, which only mentions that the math club used two vans.
To find the correct solution, we need to multiply the number of vans (2) by the number of students each van can hold (6):
2 vans × 6 students/vans = 12 students in the math club went to the derby.
Thus, the correct answer is 12 students from the math club attended the derby.