3% increase in the production of Cars of which colour along

Direction: Study the following pie-chart and answer given below:

3% increase in the production of Cars of which colour along with red cars will make them 35% of the total cars?

If 3% increase in the production of Blue cars, then percentage of Blue cars = 12 + 3
Hence, percentage of (Blue + Red) cars = 15 + 20 = 35