(3/8)/(1/4)=3*4 / 1*8=12/8=3/2
I believe the question is saying - Confetti is dropped at x height and a person stands at y high, whats the difference between x and y. If the confetti falls at z speed, how long does the person have to wait until the confetti has fallen, to unsure he does not get hit.
Not entirly sure and can't work it out 100% as i would need all tables, charts and questions.
As far as I understand A)
17.4.....add all the numbers and divide by 10
I would say 1700 , I hope this helps