Percentage Problems( Week 11 Practice) 1. 90% of of a number is 27. What is the number? 2. If the result of decreasing P by 20% P is Q, then P is what percentage of Q? 3. If P is 320% of Q, then by what percentage Q is less than P? 4. If 76% of all voters in the county are college graduates, 76% are immigrants, 76% are married, what is the minimum percentage of the married immigrants with a college education among the voters in the county? 5. Of the 10000 customers registered an online program, 9% received a $20 discount, 23% of the remaining 91% received a $10 discount, and the rest received no discount. What is the total discount (in dollars) that all the customers received? |