Comprehension Passage
Directions: Answer the questions based on the information given below.
The following bar graph given below shows the percentage of the number of chargers sold out of the total number of chargers available with the respective shops ('X' and 'Y') in five different months.
If the number of chargers available with shop 'X' in January to the number of chargers available with shop 'Y' in May is 10 : 9 respectively, then find the ratio of the number of chargers sold by shop 'X' in January to that by shop 'Y' in May?
1
3 : 2
2
4 : 3
3
5 : 4
4
6 : 5
5
7 : 6