In the last draw, the grand prize was won. If there are three winners, each would have received $ 720,000; if there are four winners, each of the winners would receive $ 540,000. How many winners are there if everyone has $ 144,000? a) 12 winners
b) 15 winners
c) 16 winners
d) 18 winners

( if your doing this can you please do it step by step )