The given pie chart represents the percentage-wise distribution of the total number of vanilla cakes and chocolates cakes sold every day. The total number of cakes sold in a week = 10500. Study the pie chart and answer the question that follows.

The ratio of vanilla cakes sold to chocolate cakes sold on Friday is 4 :3. If the price of one vanilla cake is ₹9 and that of one chocolate cake is ₹10, then the total amount earned (in ₹) by selling all vanilla cakes and chocolate cakes on Friday is :

9,900

Total cake sold on friday = \(\frac{1}{10}\) × 10500 = 1050

ratio of vanilla cakes sold to chocolate cakes sold on Friday = 4 : 3

7R = 1050

1R = 150

Number of vanilla cake = 4R = 600 , Number of chocolate cake = 3R = 450

Total earned amount = 600 × 9 + 450 × 10

= 5400 + 4500 = 9900