Quantitative Aptitude for RBI Assistant Mains 2017

Dear Students,

Directions (1-5): Study the information given below carefully and answer the questions related to it. 

In a colony, there are 2400 people who like three different type of music classical, semi classical and light.56% of total like light music. 44% of total population like semi classical music. 240 people like both light and semi classical music. 8% of total population like classical and semi classical music both. The total population who like classical music is 24%. The people who like all the three types of music viz classical, semi classical and light music are 4% of total population. 

Q1. The population who like classical and light music both is approximately what percent of people who like classical music? 

(a) 40%

(b) 42%

(c) 48%

(d) 49%

(e) 45%

Q2. What is the average number of people who like light music only, semi classical music only and classical music only?

(a) 648

(b) 662

(c) 640

(d) 650

(e) 658

Q3. What is the total number of people who like only classical and semi classical music both and only classical and light music both ?  

(a) 240

(b) 246

(c) 236

(d) 256

(e) 242

Q4. If the ratio of male to female is 13 : 9 in that population who like semi classical music  then the total number of males who like semi classical music are what percent of total population?  

(a) 24%

(b) 26%

(c) 28%

(d) 30%

(e) 32%

Q5. What is the difference between people who like light music only and semi classical music only?

(a) 244

(b) 238

(c) 235

(d) 240

(e) 245

Q6. A shopkeeper calculated his profit on the marked price and finds it to be 30%. He forgets the fact that he gave a discount of 20%. What is his actual profit percentage?  

(a) 100/7%

(b) 20%

(c) 25%

(d) 200/7%

(e) 16%

Q7. In the year 2002, the cost price of an item was 90% of the selling price while in 2003, the cost price was 95% of the selling price. If the gross profit remains the same for both the years, what is the percentage increase in the cost price of the item from 2002 to 2003?  

(a) 120%

(b) 95%

(c) 111%

(d) 105%

(e) 102%

Q8. Mayank can do 50% more work than Shishu in the same time. Shishu alone can do a piece of work in 30 hours. Shishu starts working and he had already worked for 12 hours when Mayank joins him. How many hours should Shishu and Mayank work together to complete the remaining work?  

(a) 6

(b) 12

(c) 4.8

(d) 7.2

(e) 6.2

Q9. There are 12 pipes connected to a tank. Some of them are fill pipes and the others are drain pipes. Each of the fill pipes can fill the tank in 8 h and each of the drain pipes can drain completely in 6 h. If all the pipes are kept open, an empty tank gets fill in 24 h. How many of the 12 pipes are fills pipes?(a) 5

(b) 6

(c) 7

(d) 8

(e) 4

Q10. A car goes 20 miles on a gallon of gas driving at 60 miles/h. If the car is driven at 70 miles/h it goes as far as 70%. How many gallons of gas will be required to travel 210 miles/hr.  

(a) 6.17

(b) 22.5

(c) 12

(d) 15

(e) 13

Directions (11-15): What will come in place of (?) in following number series?

Q11. 3,     6,     24,     ? ,     1152,     11520  

(a) 192

(b) 144

(c) 96

(d) 168

(e) 148

Q12. 2,     9,     40.5,     182.25,     ?  

(a) 820.125

(b) 816.125

(c) 815.220

(d) 812.52

(e) 825.12

Q13. 342,     725,     1322,     2181,     3350,     ?  

(a) 4832

(b) 4864

(c) 4888

(d) 4877

(e) 4872

Q14. 11,     24,     75,     304,     1525,     ?  

(a) 9157

(b) 10682

(c) 7630

(d) 9156

(e) 9165

Q15. 1245,     1256,     1223,     1278,     1201,     ?  

(a) 1300

(b) 1102

(c) 1322

(d) 1344

(e) 1278

Check Detailed Solutions of Quantitative Aptitude