CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? 2496 05b5cc67ee4d2b4197774c245
5b5cc67ee4d2b4197774c245- 12 kmphfalse
- 24 kmphtrue
- 36 kmphfalse
- 48 kmphfalse
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उत्तर : 2. "4 kmph"
व्याख्या :
Answer: B) 4 kmph Explanation: Let the distance in one direction = k kms Speed in still water = 4.5 kmph Speed of river = 1.5 Hence, speed in upstream = 4.5 - 1.5 = 3 kmph Speed in downstream = 4.5 + 1.5 = 6 kmph Time taken by Rajesh to row upwards = k/3 hrs Time taken by Rajesh to row downwards = k/6 hrs Now, required Average speed =Total distanceTotal speed = 2kk3 + k6 = 2k x 186k + 3k = 4 kmph Therefore, the average speed of the whole journey = 4kmph.
प्र: Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ? 2494 05b5cc72ce4d2b4197774f773
5b5cc72ce4d2b4197774f773- 132 yearsfalse
- 248 yearsfalse
- 362 yearsfalse
- 450 yearstrue
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उत्तर : 4. "50 years"
व्याख्या :
Answer: D) 50 years Explanation: Let Rajan's present age be 'x' years.=> Then his daughter's present age is = x/3 years.His mother's present age = 13x/9 yearsNow, according to the question,x + x/3 + 13x/9 = 125=> x = 125x9/25 = 45Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9=> 10 x 45/9 = 50 years.
प्र: If two fractions, each of which has a value between 0 and 1, are multiplied together, the product will be : 2494 05b5cc6cfe4d2b4197774e303
5b5cc6cfe4d2b4197774e303- 1always greater than either of the original fractionsfalse
- 2always less than either of the original fractionstrue
- 3sometimes greater and sometimes less than either of the original fractionsfalse
- 4remains the samefalse
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उत्तर : 2. "always less than either of the original fractions"
व्याख्या :
Answer: B) always less than either of the original fractions Explanation: We can easily Answer this by taking some values. The question states that the two fractions, each have values between 0 and 1.Let us say one of the fraction is 1/2 and the other fraction is 1/3 .The product of the two fractions is 1/2 x 1/3 = 1/6 . is lesser than both 1/2 and 1/3 .So, the correct answer is that the product is always less than either of the original fractions.
प्र: Draw the Judgement from the following passage ? Mrs. Carson took a taxi to meet her three friends for lunch. They were waiting for her outside the restaurant when she pulled up in the car. She was so excited to see her friends that she left her tote bag in the taxi. As the taxi pulled away, she and her friends took notice of the license plate number so they would be able to identify the car when they called the taxi company. The four license plate numbers below represent what each of the four women thinks she saw. Which one is most likely the license plate number of the taxi ? 2492 05b5cc6eee4d2b4197774ef25
5b5cc6eee4d2b4197774ef25- 1JYK 12Lfalse
- 2JXK 12Ifalse
- 3JXX 12Lfalse
- 4JXK 12Ltrue
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उत्तर : 4. "JXK 12L"
व्याख्या :
Answer: D) JXK 12L Explanation: The four women seem to agree that the plate starts out with the letter J. Three of them agree that the plate ends with 12L. Three of them think that the second letter is X, and a different three think that the third letter is K. The plate description that has all of these common elements is D.
प्र: Which state has established India's first Centre for Animal Law ? 2492 05b5cc6c5e4d2b4197774dda5
5b5cc6c5e4d2b4197774dda5- 1Madhya Pradeshfalse
- 2Uttar Pradeshfalse
- 3Maharashtrafalse
- 4Telanganatrue
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उत्तर : 4. "Telangana"
व्याख्या :
Answer: D) Telangana Explanation:
प्र: Arun purchased 30 kg of wheat at the rate of Rs. 11.50 per kg and 20 kg of wheat at the rate of 14.25 per kg. He mixed the two and sold the mixture. Approximately what price per kg should be sell the mixture to make 30% profit ? 2492 05b5cc6f1e4d2b4197774ef44
5b5cc6f1e4d2b4197774ef44- 1Rs. 17.80false
- 2Rs. 16.30true
- 3Rs. 14false
- 4Rs. 15.40false
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उत्तर : 2. "Rs. 16.30"
व्याख्या :
Answer: B) Rs. 16.30 Explanation: C.P. of 50 kg wheat = (30 * 11.50 + 20 * 14.25) = Rs. 630. S.P. of 50 kg wheat = 130% of Rs. 630 = 130/100 * 630 = Rs. 819. S.P. per kg = 819/50 = Rs. 16.38 = 16.30.
प्र: The Opium war id held between which two countries ? 2490 05b5cc6dae4d2b4197774e87b
5b5cc6dae4d2b4197774e87b- 1England and Francefalse
- 2China and Russiafalse
- 3Russia and Englandfalse
- 4China and Englandtrue
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उत्तर : 4. "China and England"
व्याख्या :
Answer: D) China and England Explanation: The Opium Wars were two wars in the mid-19th century involving Anglo-Chinese disputes over British trade in China and China’s sovereignty. The disputes included the First Opium War (1839–1842) and the Second Opium War (1856–1860).
प्र: In each question given below four conclusions are followed by statements. You have to take the three given statements to be true (even if they seem to be at variance from the commonly known facts). Read the conclusions and decide which of the following set of statement indicate that conclusion is logically follows. Statements : 1. All chairs are tents. 2. No chairs is jugs. 3. No jugs is glasses. 4. No glasses is pots. Conclusions : I. All pots are tents. II. All glasses are chair. III. Some jugs are tents. 2490 05b5cc6b7e4d2b4197774d61f
5b5cc6b7e4d2b4197774d61f- 1Only conclusion I followsfalse
- 2Both conclusion II & III followsfalse
- 3None followstrue
- 4Only conclusion II followsfalse
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उत्तर : 3. "None follows"
व्याख्या :
Answer: C) None follows Explanation:

