[Clerk Cooperative Bank Aug, 2021]

1. An insect crawls at a rate of 3 mts/min up a vertical pole of a height of 15 mts. Every minute, it slides down through 1 mt. How long will it take to touch the top of the pole?





Answer & Solution

Answer:

7 min

[Clerk Cooperative Bank Aug, 2021]

2. An alloy contains copper and zinc in the ratio of 5:3, and another alloy contains copper and tin in the ratio of 8: 5. If equal weights of both the alloys are melted together, then the weight of tin in the resulting alloy per gram will be





Answer & Solution

Answer:

5/26

[Clerk Cooperative Bank Aug, 2021]

3. Out of the three papers, with a total of 300, 400 and 500 marks respectively, a candidates secured 45% marks in the first paper and 55% in the second paper. What must be his score in the third paper, so that his overall average becomes 50%?





Answer & Solution

Answer:

49%

[Clerk Cooperative Bank Aug, 2021]

4. A person performs the onward journey from home place to office at a speed of 30 km/hr and the backward journey at a speed of 20 km/hr. His average speed over the entire track is





Answer & Solution

Answer:

24 km/hr

[Clerk Cooperative Bank Aug, 2021]

5. A thief is spotted by a policeman from a distance of 200 m. When the policeman starts the chase, the thief also starts running. Assuming speed of the thief to be 10 km/hr and that of policeman to be 12 km/hr, how far the thief will have to run before he is overpowered ?





Answer & Solution

Answer:

1 km