Question

There are 84 students going on a field trip each bus can hold 35 people how many buses are needed

Answer 1

3 buses are needed because, 35 times 2 is 70 and there are 84 people so, another bus is needed even if it is half full.

Answer 2

3 are needed. Each bus carries 35. 2 would carry 70. There needs to be another bus to carry the other 14 students.