Study the given table and answer the question that follows.
The table gives the number of graduate students enrolled in 4 different colleges A,B, C, and D in a city over the years 2010 to 2014 and also the number of students who passed in the final examination during these years.

Find the ratio of the average of students enrolled from college D to the average of students who passed from college D over all the years.

Correct option is B

​Given: ​

Concept Used: 

A ratio compares two numbers or quantities, written in the form a : b or $$\frac{a}{b}$$​​, where a and b are the quantities being compared.

The ratio a : b means that for every a units of the first quantity, there are b units of the second quantity. 

Solution: 

Number of students appeared in exam over all year = 3600

Number of students passed in exam over all year = 3400

Required ratio = 3600 : 3400
= 18 : 17