Maths

Today in the morning my group and I did a math problem. The problem was, Glenbrae School was going on a trip to Auckland Museum and they were taking 190 students with them. They hired some buses and each bus could hold 25 passengers. How many buses did they hire?

So first we knew that 1 bus holds 25 passengers, so we did 2 buses which added up to 50 students, then we did another 2 buses which added to 50 as well. We added 50 and 50 which added up to 100. Then we did another 2 which had 50 and added that 50 to the 100 which added up to 150, then we did another 1 bus which had 25 passengers and added that 25 to the 150 which added up to  175.

Now we only have 15 students left. I put them in another bus and added 175 to 15 which added up to 190. So you need 8 buses.