CAT Practice Question and Answer
8Q: In a daily morning walk three persons step off together. their steps measure 75 cm, 80 cm and 85 cm respectively. What is the minimum distance each should walk so that thay can cover the distance in complete steps ? 1591 05b5cc6c0e4d2b4197774dabc
5b5cc6c0e4d2b4197774dabc- 1222 m 44 cmfalse
- 2204 mtrue
- 3201 m 21 cmfalse
- 4208 mfalse
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Answer : 2. "204 m"
Explanation :
Answer: B) 204 m Explanation: To find the minimum distance, we have to get the LCM of 75, 80, 85 Now, LCM of 75, 80, 85 = 5 x 15 x 16 x 17 = 20400 Hence, the minimum distance each should walk so that thay can cover the distance in complete steps = 20400 cms = 20400/100 = 204 mts.
Q: The original ASCII code used ___________ bits of each byte, reserving that last bit for error checking ? 1634 05b5cc6c0e4d2b4197774dac1
5b5cc6c0e4d2b4197774dac1- 15false
- 26false
- 37true
- 48false
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Answer : 3. "7"
Explanation :
Answer: C) 7 Explanation:
Q: Two numbers are in the ratio 3 : 7. If 6 be added to each of them, then they are in the ratio 5 : 9. Find the numbers ? 1766 05b5cc6c0e4d2b4197774dab7
5b5cc6c0e4d2b4197774dab7- 111 & 17false
- 27 & 17false
- 39 & 21true
- 413 & 23false
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Answer : 3. "9 & 21"
Explanation :
Answer: C) 9 & 21 Explanation: Let the two numbers be x and y Given x : y = 3 : 7 .....(1) Now, x+6 : y+6 = 5 : 9 .....(2) From (1), x = 3y/7 From (2), 5y - 9x = 24 => 5y - 9(3y/7) = 24 => y = 21 => From(1), x = 9 Hence, the two numbers be 9 and 21
Q: The mean of 100 observations is 40. It is found that an observation 84 was misread as 48. Then the correct mean is ? 1668 05b5cc6c0e4d2b4197774dab2
5b5cc6c0e4d2b4197774dab2- 140.36true
- 241.24false
- 341.92false
- 442.05false
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Answer : 1. "40.36"
Explanation :
Answer: A) 40.36 Explanation: Given, mean of 100 observations is 40 => Total of 100 observations = 40 x 100 = 4000 84 is misread as 48 => Difference = 84 - 48 = 36 => Now, new total of 100 observations = 4000 + 36 = 4036 Correct Mean = 4036/100 = 40.36
Q: The construction of Warangal Fort was started by ______ ? 1558 05b5cc6bfe4d2b4197774daad
5b5cc6bfe4d2b4197774daad- 1Beta - IIfalse
- 2Rudratrue
- 3Jayapafalse
- 4Prola - IIfalse
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Answer : 2. "Rudra"
Explanation :
Answer: B) Rudra Explanation:
Q: Which Bank has opened 9 SmartUp Zones in Bengaluru, Karnataka? 1800 05b5cc6bfe4d2b4197774daa7
5b5cc6bfe4d2b4197774daa7- 1Axis Bankfalse
- 2SBI Bankfalse
- 3Karnataka Bankfalse
- 4HDFC Banktrue
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Answer : 4. "HDFC Bank"
Explanation :
Answer: D) HDFC Bank Explanation:
Q: Symbolic logic was discovered by ___________ 4127 15b5cc6bfe4d2b4197774da9c
5b5cc6bfe4d2b4197774da9c- 1Herman Hollerithfalse
- 2Vonn Neumannfalse
- 3George Booletrue
- 4Sun Microsystemfalse
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Answer : 3. "George Boole"
Explanation :
Answer: C) George Boole Explanation:
Q: If the LCM and HCF of two numbers are equal, then the numbers must be 17944 05b5cc6bfe4d2b4197774daa1
5b5cc6bfe4d2b4197774daa1- 1Prime Numbersfalse
- 2Composite Numbersfalse
- 3Equaltrue
- 4Co- prime Numbersfalse
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Answer : 3. "Equal"
Explanation :
Answer: C) Equal Explanation: If LCM = HCF then, the two numbers are equal.