The number of tins of paint sold by three different shops are given below:
| Shops | Number of tins of paint sold |
| A | 100 |
| B | 120 |
| C | 160 |
Draw a pictograph and answer the following questions:
(a) What is the total profit of shop B, if the profit gained on each tin is ?100?
(b) If the symbol 0 represents 20 tins, how many symbols must be drawn for shop A?
(c) Find the difference in the number of tins sold by shop A and shop B.