Answer: 91.67
Step-by-step explanation:
Consumer Price Index₂₀₀₂ = ( Basket Price in Year of interest₂₀₀₂ / Basket Price in Base year₂₀₀₉) * 100
Basket Price in 2002 = (10 * 0.6) + (5 * 1)
= $11
Basket Price in 2009 = (5 * 1) + (10 * 0.7)
= $12
Consumer Price index = 11/12 * 100
= 91.67