Study the following table and answer the question:
Number of students enrolled for Vocational Courses (VC) in institutes A, B, C, D, E & F.
|
Years → Institutes ↓ |
2014
|
2015
|
2016
|
2017
|
2018
|
|
A |
110 |
150 |
165 |
180 |
205 |
|
B |
120 |
180 |
176 |
200 |
220 |
|
C |
140 |
220 |
180 |
175 |
225 |
|
D |
125 |
210 |
175 |
180 |
230 |
|
E |
150 |
200 |
160 |
200 |
240 |
|
F |
165 |
230 |
200 |
220 |
210 |
The difference between the average number of students enrolled for VC in institute F in 2015, 2017 and 2018 and the average number of students enrolled in all the six institutes in 2014, is:
Answer & explanation
Correct answer: option 4
Total number of Students enrolled in VC in F in 2015 , 2017 & 2018 = 230 + 220 + 210 = 660
Average Students enrolled in VC in F in 2015 , 2017 & 2018=(\frac{660}{3}\) = 220
Total number of Students enrolled in 2014 = 110 + 120 + 140 + 125 + 150 + 165 = 810
Average = (\frac{810}{6}\) = 135
Required difference = 220 - 135 = 85