Question 1094575
600/25
divide, you should be able to do it in your head: 
How many times does 25 go into 100? 25+25+25+25 = 4
And how many times goes 100 into 600? 100+100+100+100+100+100 = 6 
And what is the product of 4 x 6? Multiply, that is how many fans on each bus.