The students from Greenridge Primary School are going for a field trip. If each bus takes 35 students, 15 students will not get to board the bus. If each bus takes 5 more students, there will be one empty bus.

(a) How many buses does the school need to hire?

(b) How many students are going for the field trip?

(a) 4

(b) 250

(b) 250

(a) 6

(b) 300

(b) 300

(a) 8

(b) 350

(b) 350

(a) 10

(b) 400

(b) 400

None of the above