ON Monday, 518 students went on a trip to the zoo. All the 9 buses were filled and 5 students had to travel by car. How many students were in each bus?

Question

ON Monday, 518 students went on a trip to the zoo. All the 9 buses were filled and 5 students had to travel by car. How many students were in each bus?

 

Answer 1

From the total, subtract the 5 who went by car; this gives 513 students in 9 busses. IF ALL BUSSES had identical numbers of passengers, then simply divide 513 by 9 to give the number of students per bus.

 

This will work; 513 has digit sum 9 and so is divisible by 9.