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yes that is correct for that combination problem and
for the other combination problem on dollars,(am not sure if i am correct!!)
Total no of ways of giving 7 dollars to 3 people and each should have min.1 dollar is similar to no. of ways of giving 4 dollars to 3 people = 3^4
Total no. of ways of giving 7 dollsrs to 3 people and 1 getting min 3dollars, other two a minimum of 1 dollar is similar to no of ways of giving 2 dollars to 3 people = 3^2
so the value in Column B is greater.
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