Practice Data Interpretation Questions and Answers with PDF for IBPS RRB Scale 1, IBPS RRB Clerk 2019 at Smartkeeda

Direction : Study the following bar chart carefully and answer the questions given below.
 
The following chart gives the information about the number of applicants (in lakhs) who applied for two different examination (RRB Scale 1 and RRB Assistant) during the past 6 years.

1
What is the difference between the sum of the number of students who applied for RRB Scale 1 over all the years together and the sum of number of students who applied for RRB Assistant over all the years together?
» Explain it
A
The sum of the number of students who applied for RRB Scale 1 over all the years together = 27.15 lakhs 
 
The sum of number of students who applied for RRB Assistant over all the years together = 25.2 
 
The required difference = 27.15 – 25.2 = 1.95 lakhs 
 
Hence, option A is correct.
2
If 20% of the students who applied for RRB Scale 1 in 2017 qualified in pre-test and 25% of the students who applied for RRB Assistant in 2017  qualified in pre-test then what was the total number of students who did not qualify in pre – test in 2017?
» Explain it
E
The total number of students who did not qualify in pre-test = (100 – 20) % of 8.4 + (100 – 25)% of 7.2 lakhs = 80% of 8.4 + 75% of 7.2 = 12.12 lakhs 
 
Hence, option E is correct.
 
3
Total number of students who applied in 2017 for both the examinations together was how much percent more than the total number of students who applied in 2012 for both the examinations? 
» Explain it
A
Total number of students who applied in 2017 for both the examinations together = 15.6 lakhs

the total number of students who applied in 2012 for both the examinations = 2+2.5 = 4.5 lakhs

The reqd. % =  (15.6 – 4.5) × 100  = 246.67% approximately
4.5

Hence, option A is correct.
4
In 2018, it is assumed that the number of students who will apply for both the examination together will be 20% more than the number of students who had applied in 2017 for both the examination together. Find the number of students who will apply in 2018 if assumption comes true?
» Explain it
D
Total number of students who applied in 2017 = 15.6 lakhs 
 
If assumption comes true then the total number of students in 2018 = 120% of 15.6 = 18.72 lakhs 
 
Hence, option D is correct.
5
What is the respective ratio between the number of number of students who applied for RRB Scale 1 in 2012 and 2015 together and the number of students who applied for RRB assistant in 2015 and 2017 together? 
» Explain it
A
The number of number of students who applied for RRB Scale 1 in 2012 and 2015 together = 6.5 lakhs 
 
and the number of students who applied for RRB assistant in 2015 and 2017 together = 10 lakhs 
 
The required ratio = 6.5 : 10 = 13 : 20 
 
Hence, option A is correct.

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