The table below shows the number of toys of 6 different colours sold from a shop during a given period. The table also shows the percentage of toys of each colour which are cars.

What is the total number of car toys of C2 and C3 taken together?

140

Total number of car toys in C2 & C3 = \(\frac{15 }{100}\) × 600 + \(\frac{12.5 }{100}\) × 400

= \(\frac{3 }{20}\) × 600 + \(\frac{1 }{8}\) × 400

= 90 + 50

= 140