IBPS RRB Clerk Quantitative Aptitude Quiz: 12th August 2019

Directions (1-5): Given below is the data related to students enrolled in “Mega Talent Hunt” Science Olympiad from 5 different colleges. 

Q1. Boys enrolled from college S are what percent of boys qualified from college Q ?(Round off to 2 decimal places)

Q2. Find the ratio of boys enrolled from college Q and college S together to the girls qualified from the same.

Q3. Boys enrolled from college T are what percent of average no. of boys enrolled from all colleges together(take approximate value)?

Q4.If of girls qualified from college P were found not eligible to participate further in the olympiad due to several reasons, then find the ratio between the girls promoted to next part of olympiad from college P to the total number of students qualified from college P.

Q5. Find the total number of boys qualified from all colleges together.

Q6. In an alloy, zinc and copper are in the ratio 1 : 2. In the second alloy the same elements are in the ratio 2 : 3. In what ratio should these two alloys be mixed to form a new alloy in which the two elements are in ratio 5 : 8?

Q7. The ratio between the speed of car, train and a bus is 5 : 9 : 4. The average speed of the car, bus and train is 72 kmph. What is the average speed of the car and train together?

Q8. A man has whisky worth Rs. 22 a litre and another lot worth Rs 18 a litre. Equal quantities of these are mixed with water to obtain a mixture of 50 litres worth Rs 16 a litre. Find how much water the mixture contains? (assume water is available free of cost)

Q9. A mixture of a certain quantity of milk with 16 litres of water is worth Rs 3 per litre. If pure milk be worth Rs 7 per litre how much milk is there in the mixture? (cost of water is zero)

Q10. A 320 metres long train takes 80 seconds more time to cross a platform than it takes to cross a pole at the same speed. If the length of platform is twice the length of train, then find the speed of the train.

Q11. One type of liquid contains 50% of milk, the other contains 60% of milk. A container is filled with 12 parts of the first liquid and 8 parts of the second liquid. The percentage of milk in the mixture is:

Q12. In a 70 litre of mixture of spirit and water, the ratio of spirit to water is 9 : 5. If 14 litre mixture is taken out and same amount of water is added to the mixture. If this process is repeated for two times, then what will be quantity of spirit in final mixture?

Q13. The ratio between the speed of a train and a car is 18 : 3. Also, a bus covers a distance of 480 km in 12 hours. If the speed of the bus is five-ninths of the speed of the train. How much distance will the car cover in 5 hours?

Q14. A boat running upstream takes 528 min to cover a certain distance, while it takes 240 min to cover the same distance running downstream. What is the ratio between the speed of the boat and speed of the water current?

Q15. A man can swim 48 m/min in still water, he swims 200 m against the current and 200 m with the current. If the difference between those two times is 10 min, what is the speed of the current?