Quantitative Aptitude for IBPS PO Prelims Exam: 7th September 2018

Direction (1-5): The following table shows the no. of cyberattack on various agencies in five different years. Study the table carefully and answers the question that follow: 

Q1. What is the average of no. of cyberattacks on CIA in all the five years? 

Solution: A

Q2. Total no. of cyberattacks held on RAW agency in 2005 and 2008 together is what percent of total cyberattacks held on ISISI in 2006? 

Solution: C

Q3. In 2010, RAW had reduced no. of cyberattacks on it by 25% than that in previous year by introducing new security system. What is the total no. of cyberattacks on RAW in the years 2008, 2009, and 2010 together? 

Solution: B

Q4. What is the difference between total number of cyberattacks on all agencies together in 2006 and that in 2008? 

Solution: D

Q5. Total no. of cyberattacks on CIA and ISISI together in 2007 is what percent more or less than that on RAW and NATO together in the same year? 

Solution: C

Directions (6-10): Find the wrong term in the following number series. 
Q6. 5, 15, 30, 135, 405, 1215, 3645 

Solution: B

Q7. 2, 9, 28, 65, 126, 216, 344 

Solution: C

Q8. 1, 2, 6, 21, 86, 445, 2676 

Solution: A

Q9. 3, 5, 12, 38, 154, 914, 4634 

Solution: D

Q10. 696, 340, 168, 80, 36, 14, 3 

Solution: C

Q11. In a 90 litres mixture of milk and water, percentage of water is only 30%. The milkman gave 18 litres of this mixture to a customer and then added 18 litres of water to the remaining mixture. What is the percentage of milk in the final mixture? 

Solution: E

Q12. The cost price of article A is Rs. 100 more than the cost price of article B. Article A was sold at 40% profit and article B was sold at 40% loss. If the overall profit earned after selling both the articles is 5%, what is the cost price of article B ? 

Solution: D

Q13. At present, the respective ratio between the ages of A and B is 3 : 4 and that between A and C is 1 : 2. Six years hence, the sum of ages of A, B and C will be 96 years. What is the present age of A ? 

Solution: C

Q14. When one litre of water is added to a mixture of acid and water, the new mixture contains 20% acid. When one litre of acid is added to the new mixture, then the resulting mixture contains 100/3% acid. The percentage of acid in the original mixture was 

Solution: D

Q15. 2 men can complete a piece of work in 6 days. 2 women can complete the same piece of work in 9 days, whereas 3 children can complete the same piece of work in 8 days. 3 women and 4 children worked together for 1 day. If only men were to finish the remaining work in a day, how many total men would be required? 

Solution: B

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