Comprehension Passage
Directions: Read the line graph carefully and answer the following questions.
The line graph shows the cost price (in thousands) and selling price (in thousands) of 4 different articles.
What is the ratio of the cost price of mobile and kindle to the selling price of laptop and tablet?
1
11 : 13
2
9 : 11
3
11 : 14
4
1 : 1