How is 500 divided by 200 = 2.5 please explain

Tcan be concluded that % of the seniors would prefer to see more candid pictures in this year's edition of the yearbook.

Water flows at a steady rate from a tap. its takes 40 seconds to fill a 4 litre watering can from the tap. the rate at which water flows from the tap is halved. complete: 4 litres into cm3

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !