Directions: Study the following bar diagram carefully and answer the questions given below it.
The Number of students enrolled in three different disciplines in five different colleges.
What is the total number of students studying MBA in all colleges together?
1800
2100
2300
2500
Answer: (c) 2300Solution: total number of students studying MBA in all colleges together, $$ = 350 + 300 + 500 + 600 + 550 $$ $$ = 2300 $$
What is the respective ratio of total number of students studying MCA in the colleges R and S together to those studying MBA in the colleges P and Q together?
20:13
22:15
24:17
21:19
Answer: (a) 20:13Solution: Total number of students studying MCA in the colleges R and S together, $$ = 550 + 450 $$ $$ = 1000 $$ total number of students studying MBA in the colleges P and Q together, $$ = 350 + 300 $$ $$ = 650 $$ Required ratio, $$ = 1000 : 650 $$ $$ = 20 : 13 $$
What is the respective ratio of total number of students studying B.Tech. in the college R and S?
Number of students studying B.Tech. in college R forms approximately what percent of the total number of students studying MBA in all colleges together?
16%
20%
26%
28%
Answer: (c) 26%Solution: Number of students studying B.Tech in college R = 600Total number of students studying MBA in all the colleges together = 2300Hence, Required percentage, $$ = \frac{600}{2300} \times 100 $$ $$ = 26.08 \ \% \approx 26 \ \% $$
Number of students studying MBA in college Q forms approximately what percent of total number of students studying all the disciplines together in that college?
21%
23%
25%
27%
Answer: (b) 23%Solution: Number of students studying MBA in college Q = 300total number of students studying all the disciplines together in the college Q, $$ = 300 + 450 + 550 $$ $$ = 1300 $$ Hence, Required percentage $$ = \frac{300}{1300} \times 100 $$ $$ = 23.07 \ \% \approx 23 \ \% $$