Part of the proceeds from a garage sale was $275 worth of $5 and $20 bills. If there were 5 more $5 bills than $20 bills, find the number of each denomination.

Suppose $20 bill=x

Then $5 bill=x+5

Equation for the given case is:

20x+5 (x+5) = 275

20x+5x+25=275

25x+25=275

25x=250

x=10 (Which is number of $20 bill)

Now number of $5 bill = 10+5 = 15

Answer: Number of $20 bill = 10 and Number of $5 bill = 15