The given table shows the number students graduated from 4 different departments namely Mathematics, History, Urdu and English during 5 consecutive years.

Name of the Departments	Years
	2014	2015	2016	2017	2018
Mathematics	250	150	275	255	310
History	80	60	55	85	75
Urdu	58	64	50	60	55
English	40	35	52	38	30

What is the ratio of the number of students who graduated from Department of Urdu in the year 2015 to the total number of students who graduated from Department of Urdu for all the years?

Correct option is A

Given:

Number of students who graduated from the Urdu department in 2015 = 64

Solution:

Total number of students who graduated from the Urdu department for all years =

58 + 64 + 50 + 60 + 55 = 287

Required Ratio$$= \frac{\text{Graduates in 2015}}{\text{Total Graduates over 5 years}} = \frac{64}{287}$$​

64:287