Quantitative Aptitude MCQ for RRB PO/Clerk Mains 2018: 13 September

Quantitative Aptitude MCQ for RRB PO/Clerk Mains 2018: 13 September

Quantitative Aptitude MCQ for RRB PO/Clerk Mains 2018: 13 September

Directions (Q. 1-5): Study the following information carefully and answer the questions given below: 
800 students participated in any one or more events of Essay Writing, Quiz Contest and Painting in a college fest. 20% of students participated only in Quiz Contest in which the ratio of boys to girls was 5 : 3 while, 15.625% students participated only in Essay Writing, in which the ratio of boys to girls was 3 : 2, and 22.5% students participated only in Painting, in which the ratio of boys to girls was 5 : 1.
15% students participated in Essay Writing and Painting only, in which the ratio of boys to girls was 2 : 1. 11.25% students participated in Quiz Contest and Painting only, in which the ratio of boys to girls was 5 : 4.
9.375% students participated in Quiz Contest and Essay Writing only in which the ratio of boys to girls was 4 : 1. The ratio of boys to girls who participated in all three events was 7 : 3.
1. What is the total number of girls who participated in only one type of event?
        1) 120                    2) 130                    3) 140
        4) 150                    5) 160
2. What is the number of boys who participated in all three types of event?
        1) 28                       2) 35                       3) 42
        4) 56                       5) 70
3. What is the difference between the total number of boys and the total number of girls who participated in Quiz Contest?
        1) 105                    2) 110                    3) 115
        4) 120                    5) 125
4. What is the percentage of students who participated in Essay Writing?
        1) 42.25%             2) 43.25%             3) 44.25%
        4) 45.25%             5) 46.25%
5. The number of girls who participated in Painting is what percentage of the total number of students?
        1) 12.725%           2) 15.625%           3)17.25%
       4) 18.125%          5) 20%
Directions (Q. 6-8): What will come in place of question mark (?) in the following number series?
6.  180     364            528            648     700         ?
        1) 840                    2) 800                    3) 760
        4) 720                    5) 660
7.   1     33              161            513      1249       ?
        1) 2213                  2) 2353                  3) 2463
        4) 2593                  5) 2603
8.   28     126            378            860      1720       ?
        1) 3066                  2) 2066                  3) 3056
        4) 3266                  5) None of these
9. What quantity of water should be taken out from a solution to convert 495 litres of 25% concentrated acidic liquid into to a 45% concentrated acidic liquid?
        1) 180 litres           2) 200 litres           3) 220 litres
        4) 240 litres           5) 250 litres
10. A can do a work in 24 days, B takes 40 days to complete the same piece of work, and C takes as long as A and B would take working together. How long will A, B and C take together to complete the work?
        1) 5 days               2) 7.5 days            3) 10 days
        4) 12.5 days          5) 15 days
11. An amount of money becomes `4320 in 2 years and `5184 in 3 years on compound interest. What is the rate of interest?
        1) 5%                     2) 10%                   3) 15%
        4) 20%                   5) 25%
12. By selling an item for `640 a shopkeeper makes a loss of 20%. By what per cent should he increase his selling price so as to make a profit of 10%?
        1) 30%                   2) 37.5%                3) 40%
        4) 42.5%                5) 27.5%
13.  4 men and 7 boys can earn `3015 in 9 days. 7 men and 5 boys can earn `2835 in 7 days. In how many days will 8 men and 8 boys earn `7280?
        1) 10 days             2) 12 days             3) 14 days
        4) 16 days             5) 18 days

Answers:

  1. 3
  2. 2
  3. 3
  4. 5
  5. 2
  6. 5
  7. 4
  8. 1
  9. 3
  10. 2
  11. 4
  12. 2
  13. 3
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