Quantitative Aptitude for IBPS PO Prelims Exam: 15th September 2018

Directions (1-5): What should come in place of the question mark (?) in the following number series? 
Q1. 586,   587,   586,   581,    570,    ?,    522 

Solution: C

Q2. 64,   54,    69,    49,    74,     44,          ? 

Solution: E

Q3. 4000,    2008,    1012,     ?,     265,     140.5,     78.25 

Solution: B

Q4. 5,   5,   15,   75,    ?,     4725,    51975 

Solution: C

Q5. 52,   26,    26,    39,     78,     ?,     585 

Solution: A

Q6. A bucket contains a mixture of two liquids P and Q in the ratio 4 : 1. When 10 litres of the mixture is taken out and 10 litres of liquid Q is poured into the bucket, the ratio becomes 2 : 3. How many litres of liquid P was contained in the bucket? 

Solution: D

Q7. A container contains a mixture of two liquids A and B in the proportion 4 : 1. If 45 litres of the mixture is replaced by 45 litres of liquid B, then the ratio of the two liquids becomes 2 : 5 in the container. How much of the liquid B was there in the container? What quantity does the container hold initially? 

Solution: B

Q8. Two candles of the same height are lighted at the same time. The first is consumed in 3 hours and the second in 1 hour. Assuming that each candle burns at a constant rate, in how many hours after being lighted, the ratio between the first and second candles become 2 : 1? 

Solution: C

Q9. An IT company employs 4800 people, out of which 45 percent are males and 60 percent of the males are either 25 years or older. How many males are employed in this company who are younger than 25 years? 

Solution: D

Q10. A motor boat can travel at 10 km/hr in still water. It travelled 91 km downstream in a river and then returned, taking altogether 20 hrs. Find the rate of the flow of the river  

Solution: D

Directions (11-15): The following table shows the total no. Of persons in two different states of India who were appointed as workers in PWD in Five different years and also ratio of male to Female among them (ratio is same for both the states).
Study the table carefully and answer the following questions. 

Q11. The no. Of female workers from Assam in 2011 is approximately what percent of no. Of female workers from MP in the same year? 

Solution: B

Q12. What is the total no. of male workers appointed in both states together in the years 2007, 2008 and 2009 together? 

Solution: C

Q13. The no. Of female workers from Assam in year 2009 is approximately what percent less than the no. Of male workers form MP in the same year? 

Solution: A

Q14. What is the average no. of male workers from both states in years 2008 and 2010 together? 

Solution: D

Q15. What is the difference between no. of male workers from MP in 2007 and 2009 together and no. of female workers in 2008 and 2010 in MP together?

Solution: B

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