Question

A pattern has 4 blue triangles to every 12 yellow triangles. What is the ratio of blue

triangles to all triangles?

Answer 1

blue triangles = 4 
all triangles = 4+12 =16
ratio of blue triangles to all triangles =
4:16

Answer 2

Blue triangles =4
Total triangles = 4(blue Δ s) + 12( yellow Δ s)
= 16 triangles

Ratio of blue triangles to total triangles is
4/16.
Therefore ratio is 1:4

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