Bank Exams Practice Question and Answer
8Q: If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream. 2490 05b5cc6afe4d2b4197774d278
5b5cc6afe4d2b4197774d278- 12.8 hrsfalse
- 22.7 hrstrue
- 32.6 hrsfalse
- 42.5 hrsfalse
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Answer : 2. "2.7 hrs"
Explanation :
Answer: B) 2.7 hrs Explanation: Let Speed of boat in still water = b Let Speed of still water = w Then we know that, Speed of Upstream = U = boat - water Speed of Downstream = D = boat + water Given, U + D = 82 b - w + b + w = 82 2b = 82 => b = 41 kmph From the given data, 41 - w = 105/3 = 35 w = 6 kmph Now, b + w = 126/t => 41 + 6 = 126/t => t = 126/47 = 2.68 hrs.
Q: In a mixture of three varities of oils , the ratio of their weight is 4 : 5 : 8. If 5 kg of oils of the first variety, 10 kg of the second variety and some quantity of oils of the third variety are added to the mixture, the ratio of the weights of three varieties of oils becomes as 5 : 7 : 9 in the final mixture, find the quantity of third variety of oil was ? 2489 05b5cc6cce4d2b4197774e177
5b5cc6cce4d2b4197774e177- 115 kgfalse
- 225 kgfalse
- 335 kgfalse
- 445 kgtrue
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Answer : 4. "45 kg"
Explanation :
Answer: D) 45 kg Explanation: Let the ratio of initial quantity of oils be 'x' => 4x, 5x & 8x.Let k be the quantity of third variety of oil in the final mixture.Let the ratio of initial quantity of oils be 'y'From given details,4x + 5 = 5y ..... (1)5x + 10 = 7y .....(2)8x + k = 9y ......(3) By solving (1) & (2), we getx = 5 & y = 5 From (3) => k = 5 Therefore, quantity of third variety of oil was 9y = 9(5) = 45kg.
Q: A house owner wants to get his house painted. He is told that this would require 45 kg of paint allowing 6% wasting. And if the paint is available in 4 kg tins only, the number of tins required for painting the house is ? 2489 05b5cc6d1e4d2b4197774e3e3
5b5cc6d1e4d2b4197774e3e3- 112true
- 213false
- 311false
- 410false
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Answer : 1. "12"
Explanation :
Answer: A) 12 Explanation: Given 45 kg for painting And 6% 0f 45 for wasting => 6x45/100 = 2.7 kg Now total paint required = 45+2.7 = 47.7 kgs But tins are available in only 4kgs Then, no. of tins req = 47.7/4 = 11.4 => 12 tins
Q: Which is better investment : 11% stock at 143 (or) 9 3/4% stock at 117 ? 2487 05b5cc71be4d2b4197774f53f
5b5cc71be4d2b4197774f53f- 1Both are equally goodfalse
- 29 3/4% stock at 117true
- 3Cannot be compared, as the total amount of investment is not givenfalse
- 411% stock at 143false
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Answer : 2. "9 3/4% stock at 117"
Explanation :
Answer: B) 9 3/4% stock at 117 Explanation: Let investment in each case be Rs. (143 x 117). Income in 1st case = Rs.11143 x 143 x 117 = Rs. 1287.Income in 2nd case = Rs.394×117 x 143 x 117= Rs. 1394.25 Clearly, 9 3/4% stock at 117 is better.
Q: Statement: The Chairman stressed the need for making education system more flexible and regretted that the curriculum has not been revised in keeping with the pace of the changes taking place.Course of action:a. Curriculum should be reviewed and revised periodically.b. System of education should be made more flexible. 2487 05b5cc731e4d2b4197774f80f
5b5cc731e4d2b4197774f80f- 1Only a followsfalse
- 2Only b followsfalse
- 3Both a & b followstrue
- 4Neither a nor b followsfalse
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Answer : 3. "Both a & b follows"
Explanation :
Answer: C) Both a & b follows Explanation: Clearly, the situation demands making the education system more flexible and changing it periodically according to the needs of the time. So, both the courses follow.
Q: In plants, chloroplasts are necessary for 2486 05b5cc699e4d2b4197774c706
5b5cc699e4d2b4197774c706- 1photosynthesistrue
- 2storagefalse
- 3cell movementfalse
- 4respirationfalse
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Answer : 1. "photosynthesis"
Explanation :
Answer: A) photosynthesis Explanation: Plants are producers, which means they make their own food. Chloroplasts are organelles found in eukaryotic and plant cells that conduct photosynthesis. Chloroplasts absorb sunlight and use it in conjunction with water and carbon dioxide gas to produce food for the plant. Plants use energy from sunlight to help make their food, but they need chloroplasts to do it. Hence, in plants, chloroplasts are necessary for Photosynthesis.
Q: (3x + 2) (2x - 5) = ax² + kx + n. What is the value of a - n + k ? 2483 05b5cc74fe4d2b4197774fafe
5b5cc74fe4d2b4197774fafe- 14false
- 21false
- 35true
- 43false
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Answer : 3. "5"
Explanation :
Answer: C) 5 Explanation: (3x + 2) (2x - 5) = ax2+kx+n ...............(1) But (3x + 2)(2x - 5) = 6x2-11x-10........(2) so by comparing (1) & (2), we get a= 6, k= -11 , n= -10 (a - n + k) = 6 + 10 - 11 = 5.
Q: What loses its head every morning and gets it back every night? 2482 05b5cc6b5e4d2b4197774d525
5b5cc6b5e4d2b4197774d525- 1Pillowtrue
- 2Candlefalse
- 3Moonfalse
- 4Lightfalse
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Answer : 1. "Pillow"
Explanation :
Answer: A) Pillow Explanation: