SRCC GBO 2021 Question Paper

The total number of students enrolled in VC in institutes B, D and E in 2015 = 227 + 242 + 251 = 720 and,
the total number of students enrolled in institute C in 2016, 2017 and 2018 = 750.
The ratio of the total number of students enrolled in VC in institutes B, D and E in 2015 to the total number of students enrolled in institute C in 2016, 2017 and 2018 = 720 : 750 ==> 24:25

The total number of students enrolled in VC in institutes B and D in 2014 and 2016 = 222 + 232 + 228 + 258 = 940.
The total number of students enrolled in 2019 in all the five institutes = 256 + 292 + 280 + 310 + 252 = 1390.
The required percentage = $$\frac{940}{1390}\times\ 100\ \approx\ 67.6\%$$.

The total number of students enrolled in VC in institutes B and E in 2017 are 255 + 285 = 540 and, 
the total number of students enrolled in institute D in 2015 and 2016 are 242 + 258 = 500.

The percent by which the total number of students enrolled in VC in institutes B and E in 2017 more than the total number of students enrolled in institute D in 2015 and 2016 = $$\frac{540-500}{500}\times\ 100\ =8\%$$.

The total number of students enrolled in VC in institutes A, B and E in 2019 = 256 + 292 + 252 = 800. 
35% of this total = 280.
280 is 12% more than 250 i.e. the number of students enrolled in 2018 in the institute A.

The average number of students enrolled in VC in institute E in 2014, 2016 and 2017 = $$\frac{249\ +\ 246\ +285\ }{3}=260$$.
The average number of students enrolled in institute B in the years:
Option A = 241.5
Option B = 238.5
Option C = 260
Option D = 240.
The average is equal to the average in Option C.

Total number of students in School A = $$\frac{44}{360}\times\ 5400\ =\ 660$$ and number of boys are 220. 
thus the number of girls in School A = 440.

Similarly, number of girls in Schools C, D and E are 520, 360 and 558 respectively.
Total number of students in School B = 1395 and 40% of these students is 558.
This is equal to the number of girls in School E.

Number of Students in School A = 44/360 * 5400 = 660.
Girls in School A = 660 - 220 = 440.
Number of Students in School C = 960.
Girls in School C = 960 - 440 = 520.
Total girls in Schools A and C = 440 + 520 = 960.
Total Boys in Schools B and D = 830 + 450 = 1280.
Required Ratio = 1280 : 960 = 4 : 3.

Marks of B in Maths = 0.64*150 = 96 and Marks of B in Hindi = 66.
Total marks of B in Maths and Hindi = 96 + 66 = 162.
Similarly, Total marks of E in English, Science, Hindi and Social Studies = 36+52+48+88 = 224.
Required percentage = $$\frac{162}{224}\times\ 100\ =\ 72.3\%$$.