CAT Practice Question and Answer
8Q: A train travelling at 48 kmph crosses another train, having half its length and travelling in opposite direction at 42 kmph, in 12 sec. It also covers a bridge in 45 sec. Find the length of the bridge ? 1191 05b5cc6c4e4d2b4197774dcc3
5b5cc6c4e4d2b4197774dcc3- 1250 mtsfalse
- 2400 mtstrue
- 3320 mtsfalse
- 4390 mtsfalse
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Answer : 2. "400 mts"
Explanation :
Answer: B) 400 mts Explanation: Let the length of the 1st train = L mts Speed of 1st train = 48 kmph Now the length of the 2nd train = L/2 mts Speed of 2nd train = 42 kmph Let the length of the bridge = D mts Distance = L + L/2 = 3L/2 Relative speed = 48 + 42 = 90 kmph = 90 x 5/18 = 25 m/s(opposite) Time = 12 sec => 3L/2x25 = 12 => L = 200 mts Now it covers the bridge in 45 sec => distance = D + 200 Time = 45 sec Speed = 48 x5/18 = 40/3 m/s => D + 200/(40/3) = 45 => D = 600 - 200 = 400 mts Hence, the length of the bridge = 400 mts.
Q: Second Nationalization of Commercial Banks in India took place in ? 1191 05b5cc6cee4d2b4197774e247
5b5cc6cee4d2b4197774e247- 11890false
- 21969false
- 31972false
- 41980true
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Answer : 4. "1980"
Explanation :
Answer: D) 1980 Explanation: First nationalisation of commercial banks in India took place in 1969 and second time in 1980.
Q: Saraswat Bank, the largest lender in the co-operative space has appointed ______________ as its Managing Director (MD), in 2017 ? 1190 05b5cc6f8e4d2b4197774f036
5b5cc6f8e4d2b4197774f036- 1Smita Sandhanetrue
- 2Shikha Pandeyfalse
- 3D), in 2017 ? A) Smita Sandhane B) Shikha Pandey C)false
- 4, in 2017 ? A) Smita Sandhane B) Shikha Pandey C) Kavitha Chander D) Laxmi Sadhanafalse
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Answer : 1. "Smita Sandhane"
Explanation :
Answer: A) Smita Sandhane Explanation: Saraswat Bank, the largest lender in the co-operative space, has appointed Smita Sandhane as its Managing Director (MD). She is the first woman chief of India's largest urban co-operative bank.'Service to the common man' is the Motto of Saraswat Bank.
Q: Name the U.S. war between the north and the south? 1190 05b5cc639e4d2b4197774ba72
5b5cc639e4d2b4197774ba72- 1American Civil Wartrue
- 2Colonial warsfalse
- 3War of Independencefalse
- 4Post-Civil Warfalse
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Answer : 1. "American Civil War"
Explanation :
Answer: A) American Civil War Explanation: The American Civil War has been known by a number of names since it began in 1861. In most East Asian languages, the war is called "Battle between North and South side of the United States" or more commonly as "American (U.S.) North–South War", depending on the individual language.
Q: 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? 1190 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: Find the Missing Numbers in the given Number Puzzle ? 1190 05b5cc6c9e4d2b4197774df74
5b5cc6c9e4d2b4197774df74- 1169 & 81true
- 267 & 121false
- 364 & 115false
- 470 & 110false
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Answer : 1. "169 & 81"
Explanation :
Answer: A) 169 & 81 Explanation: Observe that in each column, square of sum of digits in the first row = Respective second row elements. In the same way, square of sum of digits in the second row = Respective third row elements. => 6+42=102=100 => 4+92=132=169 => 8+12=92=81.
Q: A train is moving and crossing a man who is running on a platform of 100 m at a speed of 8 kmph in the direction of the train, in 9 sec. If the speed of the train is 74 kmph. Find the length of the train ? 1189 05b5cc6c3e4d2b4197774dc27
5b5cc6c3e4d2b4197774dc27- 1202 mtsfalse
- 2188 mtsfalse
- 3165 mtstrue
- 4156 mtsfalse
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Answer : 3. "165 mts"
Explanation :
Answer: C) 165 mts Explanation: Let the length of the train = L mts Relative speed of train and man = 74 - 8 = 66 kmph = 66 x 5/18 m/s => 66 x 5/18 = L/9 => L = 165 mts.
Q: Which country successfully launched the first high-throughput communication satellite "Shijian-13" which will enable passengers of high-speed trains to watch high-definition videos smoothly and help those at the scene of natural disasters ? 1187 05b5cc6f1e4d2b4197774ef7d
5b5cc6f1e4d2b4197774ef7d- 1Japanfalse
- 2Chinatrue
- 3Singaporefalse
- 4Indonesiafalse
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Answer : 2. "China"
Explanation :
Answer: B) China Explanation: