The table below shows the ratio of books to pens sold by four different shops along with the average number of books and pens sold by each shop. Shops...
Question
The table below shows the ratio of books to pens sold by four different shops along with the average number of books and pens sold by each shop.
| Shops | Ratio of books to pens sold (books : pens) | Average number of books & pens sold |
|---|---|---|
| A | 4 : 1 | 100 |
| B | 1 : 3 | 60 |
| C | 2 : 3 | 75 |
| D | 3 : 2 | 90 |
Question: Find the difference between the average number of books sold by shops A and C and the total number of pens sold by shop B.