Ken and Hamid run around a track.
It takes Ken 80 seconds to complete a lap.
It takes Hamid 60 seconds to complete a lap.
Ken and Hamid start running at the same time from the start line.
How many laps will they each have run when they next meet on the start line?

the law of definite proportions states samples of a compound will always contain the same proportion of elements by mass. in other words, a given compound will always contain the same elements in the same proportions by mass.the law of multiple proportions states when two elements combine with each other to form more than one compound, then the weights of one element that combine with a fixed weight of the other are in a ratio of small whole numbers.

Im not that good with division but i think 5 is -6but dont quote me on thatim not the best in division but thats my answer

In this problem it decreased 20%