CAT Practice Question and Answer
8Q: There is an empty reservoir whose capacity is 30 litres. There is an inlet pipe which fills at 5 L/min and there is an outlet pipe which empties at 4 L/min. Both the pipes function alternately for 1 minute. Assuming that the inlet pipe is the first one to function, how much time will it take for the reservoir to be filled up to its capacity? 11460 05b5cc77ae4d2b4197775013d
5b5cc77ae4d2b4197775013d- 149.5 minfalse
- 250 minfalse
- 351 mintrue
- 452 minfalse
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Answer : 3. "51 min"
Explanation :
Answer: C) 51 min Explanation: The work to be done = Capacity of reservoir = 30 litres. 1st Minute ---> inlet pipe opened ---> 5 lit filled 2nd minute ---> inlet pipe closed; outlet pipe opened ---> 4 lit emptied In 2 minutes (5 litres - 4 litres = 1lit) is filled into the reservoir. It takes 2 minutes to fill 1lit ---> it takes 50 minutes to fill 25 litres into the reservoir. In the 51st minute inlet pipe is opened and the reservoir is filled.
Q: Rearrange the following five sentences in proper sequence so as to for a meaningful paragraph, then answer the questions given below them. 1. After Examining him, the doctor smiled at him mischievously and took out a syringe.2. Thinking that he was really sick, his father summoned the family doctor.3. That day, Mintu wanted to take a day off from school4. Immediately, Mintu jumped up from his bed and swore that he was fine5. Therefore, he pretended to be sick and remained in bed. 11387 05b5cc709e4d2b4197774f25d
5b5cc709e4d2b4197774f25d- 134215false
- 235241false
- 335214true
- 434251false
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Answer : 3. "35214"
Explanation :
Answer: C) 35214 Explanation:
Q: Find the Odd one out of the given series 6, 15, 35, 77, 165, 221 11378 05b5cc6d9e4d2b4197774e84d
5b5cc6d9e4d2b4197774e84d- 1221false
- 2165true
- 335false
- 477false
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Answer : 2. "165"
Explanation :
Answer: B) 165 Explanation: The terms of the series are products of two consecutive prime numbers i.e. (2 x 3), (3 x 5), (5 x 7), (7 x 11),..... So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.
Q: Four ladies A, B, C and D and four gentlemen E, F, G and H are sitting in a circle round a table facing each other. Directions: (1) No two ladies or two gentlemen are sitting side by side. (2) C, who is sitting between G and E is facing D. (3) F is between D and A and is facing G. (4) H is to the right of B. Question: 1. Who are immediate neighbours of B? 2. E is facing whom? 11173 05b5cc77ae4d2b41977750156
5b5cc77ae4d2b41977750156- 1G & H , Htrue
- 2F & H , Bfalse
- 3E & F , Ffalse
- 4E & H , Gfalse
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Answer : 1. "G & H , H"
Explanation :
Answer: A) G & H , H Explanation: From the directions given : From the fig. it is clear that 1) neighbours of B are G , H. 2) E is facing H.
Q: One word substitute for 'a post without remuneration?' 11140 05b5cc6a2e4d2b4197774cb21
5b5cc6a2e4d2b4197774cb21- 1Voluntaryfalse
- 2Honorarytrue
- 3Involuntaryfalse
- 4Sinecurefalse
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Answer : 2. "Honorary"
Explanation :
Answer: B) Honorary Explanation: The One-word substitute for 'a post without remuneration' is Honorary.
Q: Develop is to assess as train is to 10945 05b5cc6a0e4d2b4197774ca95
5b5cc6a0e4d2b4197774ca95- 1Changefalse
- 2Educatefalse
- 3Analyzetrue
- 4Recruitfalse
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Answer : 3. "Analyze"
Explanation :
Answer: C) Analyze Explanation: When you develop a product, you assess its performance for proper functioning. Similarly, when you train a person to do a job, you analyze his/her performance to understand how good he/she is at it. Hence, Develop : Assess :: Train : Analyze.
Q: 4 men can repair a road in 7 hours. How many men are required to repair the road in 2 hours ? 10757 05b5cc718e4d2b4197774f4ef
5b5cc718e4d2b4197774f4ef- 117 menfalse
- 214 mentrue
- 313 menfalse
- 416 menfalse
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Answer : 2. "14 men"
Explanation :
Answer: B) 14 men Explanation: M x T / W = Constantwhere, M= Men (no. of men)T= Time takenW= Work loadSo, here we applyM1 x T1/ W1 = M2 x T2 / W2Given that, M1 = 4 men, T1 = 7 hours ; T2 = 2 hours, we have to find M2 =?Note that here, W1 = W2 = 1 road, ie. equal work load.Clearly, substituting in the above equation we get, M2 = 14 men.
Q: Two bike riders ride in opposite directions around a circular track, starting at the same time from the same point. Biker A rides at a speed of 16 kmph and biker B rides at a speed of 14 kmph. If the track has a diameter of 40 km, after how much time (in hours) will the two bikers meet? 10550 15b5cc77fe4d2b4197775016a
5b5cc77fe4d2b4197775016a- 16.52false
- 28.14false
- 34.18true
- 45.02false
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Answer : 3. "4.18"
Explanation :
Answer: C) 4.18 Explanation: Distance to be covered = πD = 40π km Relative speed of bikers = 16 + 14 = 30 kmph. Now, time=distancespeed = 40π30 = 4.18 hrs.