Answer: The number of people in the original group of winners is 5.
Explanation:
Let the number of people in the original group of winners be 'x'.
Amount of lottery = $30,000,000
if the number of people is increased by 1 means that x+1.
So, each person's share is reduced by $1,000,000.
According to question, it becomes,
![(30000000)/(x)-(30000000)/(x+1)=1000000\\\\(30)/(x)-(30)/(x+1)=1\\\\30((x+1-x)/(x^2+x))=1\\\\(1)/(x^2+x)=(1)/(30)\\\\30=x^2+x\\\\x^2+x-30=0\\\\x^2+6x-5x-30=0\\\\x(x+6)-5(x+6)=0\\\\(x+6)(x-5)=0\\\\x=-6,5](https://img.qammunity.org/2019/formulas/mathematics/middle-school/ie0ipf07h5warqzkjjd7sh0gj9abkgurvg.png)
we discard the negative value of x i.e. -6.
So, the number of people in the original group of winners is 5.