CAT Practice Question and Answer
8Q: Two trains are running at 40 km/hr and 20 km/hr respectively in the same direction. Fast train completely passes a man sitting in the slower train in 5 seconds. What is the length of the fast train? 1525 05b5cc6bee4d2b4197774d97e
5b5cc6bee4d2b4197774d97e- 127 7/9 mtstrue
- 225 8/7 mtsfalse
- 321 1/4 mtsfalse
- 422 mtsfalse
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Answer : 1. "27 7/9 mts"
Explanation :
Answer: A) 27 7/9 mts Explanation: Relative speed = (40 - 20) km/hr = 20 x 5 m/sec = 50 m/sec. 18 9 Length of faster train = 50 x 5 m = 250 m = 27 7 m. 9 9 9
Q: As per the decision of the GST Council, e-Way Bill system has been rolled out from 1524 05b5cc669e4d2b4197774bf3b
5b5cc669e4d2b4197774bf3b- 11st March 2018false
- 21st April 2018true
- 31st May 2018false
- 41st January 2018false
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Answer : 2. "1st April 2018"
Explanation :
Answer: B) 1st April 2018 Explanation: As per the decision of the GST Council, e-Way Bill system has been rolled out from 1st of April this year (2018).
Q: What is the basic objective of monetary policy? 1524 05b5cc69ce4d2b4197774c86d
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Answer :
Explanation :
Monetary policy is the process by which the monetary authority of a country, typically the central bank or currency board, controls either the cost of very short-term borrowing or the monetary base, often targeting an inflation rate or interest rate to ensure price stability and general trust in the currency. The basic objective of monetary policy is to assist the economy in achieving a full-employment, noninflationary level of total output. Cause-effect chain: Changes in the money supply affect interest rates, which affect investment spending and therefore aggregate demand.
Q: Which of the following is the world's most poisonous snake called Hydrophis ? 1523 05b5cc6c5e4d2b4197774dd96
5b5cc6c5e4d2b4197774dd96- 1Adderfalse
- 2Boafalse
- 3Cobrafalse
- 4Sea Snaketrue
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Answer : 4. "Sea Snake"
Explanation :
Answer: D) Sea Snake Explanation:
Q: What value will come in place of question mark (?) in following number series? 12, 16, 32, 68, ? 1522 05b5cc6bee4d2b4197774d9c4
5b5cc6bee4d2b4197774d9c4- 1198false
- 2164false
- 3132true
- 4118false
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Answer : 3. "132"
Explanation :
Answer: C) 132 Explanation: Given series is 12 16 32 68 ? Here it follows a pattern that, 12 12 + (2x2) = 16 16 + (4x4) = 32 32 + (6x6) = 68 68 + (8x8) = 132
Q: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1522 05b5cc6cfe4d2b4197774e2fe
5b5cc6cfe4d2b4197774e2fe- 13false
- 26false
- 39true
- 412false
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Answer : 3. "9"
Explanation :
Answer: C) 9 Explanation: The mother completes the job in x hours.So, the daughter will take 2x hours to complete the same job. In an hour, the mother will complete 1/x of the total job.In an hour, the daughter will complete 1/2x of the total job. So, if the mother and daughter work together, in an hour they will complete 1/x + 1/2x of the job.i.e., in an hour they will complete 3/2x of the job. The question states that they complete the entire task in 6 hours if they work together.i.e., they complete 1/6 th of the task in an hour. Equating the two information, we get 3/2x = 1/6By solving for x, we get 2x = 18 or x = 9. The mother takes 9 hours to complete the job.
Q: Who has been elected as 13th Vice President of India ? 1521 05b5cc6cce4d2b4197774e144
5b5cc6cce4d2b4197774e144- 1M Venkaiah Naidutrue
- 2Gopalkrishna Gandhifalse
- 3Hamid Ansarifalse
- 4Ram Nath Kovindfalse
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Answer : 1. "M Venkaiah Naidu"
Explanation :
Answer: A) M Venkaiah Naidu Explanation:
Q: There are 3 sections with 5 questions each. If four questions are selected from each section, the chance of getting different questions is ? 1519 05b5cc73de4d2b4197774f920
5b5cc73de4d2b4197774f920- 11000false
- 2625false
- 3525false
- 4125true
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Answer : 4. "125"
Explanation :
Answer: D) 125 Explanation: Methods for selecting 4 questions out of 5 in the first section = 5 x 4 x 3 x 2 x 1/4 x 3 x 2 x 1 = 5. Similarly for other 2 sections also i.e 5 and 5 So total methods = 5 x 5 x 5 = 125.