Bunuel wrote:

The number of squares is 4 times the number of circles, and the number of circles is twice the number of triangles. What is the ratio of the number of squares to the number of triangles?

(A) 8:1

(B) 4:1

(C) 1:2

(D) 1:4

(E) 1:8

Gladiator59 's method is my first choice, but if the ratios get confusing, set up a table

S: C: T

4: 1

--|2: 1

Multiply top row by 2 (C is common factor, needs to be equal in both ratios)

S| C| T

8| 2| -

--| 2| 1

Combine:

S: C: T

8: 2: 1

Squares:Triangles

8:1

Answer A

_________________

In the depths of winter, I finally learned

that within me there lay an invincible summer.

-- Albert Camus, "Return to Tipasa"