Directions : Study the following Grpah carefully and answer the questions given below:
Number of Students Appearing for Aptitude Test from Various Towns (Number in thousands)
Q1. What is the average number of students appearing for Aptitude test from all the Towns together?
1) 33500
2) 3350
3) 17500
4) 33.5
5) None of these
Q2. The number of students appearing for the Aptitude test from Town D is approximately what percent of the number of students appearing for the Aptitude test from Town C?
1) 243
2) 413
3) 134
4) 341
5) 143
Q3. What is the respective ratio of the number of students appearing for the Aptitude test from Town C and D together to the number of students appearing for the Aptitude test from Town A, D and E together?
1) 11 : 13
2) 20 : 43
3) 20 : 47
4) 37 : 20
5) None of these
Q4. What is the respective ratio of the number of students appearing for the aptitude test from Town B to Town A?
1) 3 : 4
2) 13 : 16
3) 11 : 16
4) 2 : 3
5) None of these
Q5. The number of students appearing for the aptitude test from Town E is approximately what percent of total number of students appearing for the Aptitude test from all the Towns together?
1) 15
2) 17
3) 19
4) 21
5) 23
Answer & Explanation Answers: 2. 1 3. 1 4. 2 5. 4
1. 1
Reqd avg marks = (40 + 32.5 + 17.5 + 42.5 + 35)/5 thousand
= 16.5 * 1000/5 = 33500
Reqd pecentage = (42.5 * 1000)/(17.5 * 1000) * 100%
= 243% approx
Required ratio = (17.5 + 42.5)thousand : (40 + 42.5 + 35) thousands
= 60 : 117.5
= 20 : 39.16
= 20 : 39
Reqd Ratio = 32500 : 40000
Reqd percentage = (35000 * 100)/(40 + 32.5 + 17.5 + 42.5 + 35) * 1000 * 100%
= 35000/1675% = 21% approx