The sum of the present ages of A, B, C is 33 years. Three years ago their ages were in the ratio 1:2:3. What is the present age of A?
Choose the correct choice:	A) 5	B) 7	C) 9	D) 11	E) 13
Three years ago:   a:b:c = 1:2:3   Let a = 1x, b = 2x, and c = 3x.   Today:   (x+3) + (2x+3) + (3x+3) = 33   x = 4   So the present age of A is x+3 = 7   The answer is 7.
<result>B</result>
The sum of the present ages of A, B, C is 33 years. Three years ago their ages were in the ratio 1:2:3. What is the present age of A?