Comprehension Passage
Directions: Read the below data carefully and answer the following questions.
The Bar graph shows the discount percentage given by 4 shops A, B, C, D on every book. (Dictionary and Storybook)
The Line graph shows the markup percentage given by 4 shops A, B, C, D on every book. (Dictionary and Storybook)
The table shows the ratio between the selling price of a dictionary and a storybook.


If shop D sold a dictionary at Rs. 300 and a storybook at a certain price, then find the ratio between their cost price respectively.
1
3 ∶ 1
2
1 ∶ 2
3
2 ∶ 3
4
1 ∶ 3
5
None of these