Q1. Efficiency of A is 80% of that of B and efficiency of C is 20% more than that of B. B alone can complete a piece of work in 12 days and received Rs.600 for completing the work. If all 3 started working together on same work, then find the difference in wages received by A & C.
Q2. A vessel contains 100 liters milk. 20 liters milk is taken out from the vessel and completely replaced with water and then X liters of mixture is taken out from the vessel and completely replaced with water. If ratio of milk to water in the final mixture is 14 : 11, then find X.
Q4. Ratio of volume of cylinder to that of cone is 10:3 and ratio of radius of cylinder to that of cone is 2 : 3 and ratio of radius to height of cylinder is 2 : 5. If height of cone is 14 cm, then find curved surface area of cylinder.
(a) 2720 cm2
(b) 3080 cm2
(c) 3140 cm2
(d) 3580 cm2
(e) 2920 cm2
Q5. 75% of A is equal to 40% of C and 80% of B is equal to 100% of A. If sum of 50% of B and 30% of C is equal to 95, then find 80% of A.
Q7. CP of article – A is 80% of that of article –B. Article – A is marked 60% above its CP and 20% discount is allowed on it. If discount allowed on article – A is Rs.20 more than profit earned on article – A, then find CP of article – B.
Q9. A team of 5 persons consisting of 3 male and 2 female is to be formed out of 8 male and 5 female. Find in how many ways the team can be formed?
(a) 560 ways
(b) 840 ways
(c) 1280 ways
(d) 40 ways
(e) 1287 ways
Q10. Train – B can cross train – A in 90 seconds while running in same direction. Ratio of length of train – A to that of B is 4 : 5 and difference in speed of train – A & B is 36 km/hr. If train – A can cross 200m long platform in 24 seconds, then find speed of train – B.
(a) 162 km/hr.
(b) 90 km/hr.
(c) 144 km/hr.
(d) None of the above.
(e) Cannot be determined.
Directions (11-15): Study the table given below and answer the following questions.
Table shows the units of five accessories of computers sold by the store in 3 different years 2017, 2018 & 2019.
Q12. Find ratio of average of Mouse, Printer and Speaker sold by store in 2017 to Keyboard and Printer together sold by store in 2019.
(a) 1 : 4
(b) 2 : 3
(c) 4 : 5
(d) 3 : 7
(e) None of the above.
Q13. Mouse, UPS & Speakers together sold by store in 2019 are how much more/less than Printer & Speakers together sold by store in 2018?
Q14. UPS sold by store in 2017, 2018 & 2019 together are what percent of Printers sold by store in 2017 & 2018 together?
Q15. If selling price of a unit of Mouse and UPS sold by the store in 2019 is Rs.150 & Rs.800 respectively, then find the revenue of store from the sales of Mouse and UPS together in 2019.
(a) 12 lacs
(b) 4 lacs
(c) 16 lacs
(d) 24 lacs
(e) 8 lacs
Practice More Questions of Quantitative Aptitude for Competitive Exams:
Practice with Online Test Series for RBI Attendant 2021: