CAT प्रश्न और उत्तर का अभ्यास करें

प्र: Find the lowest 4-digit number which when divided by 3, 4 or 5 leaves a remainder of 2 in each case ? 1122 0

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    1020
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  • 2
    1040
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  • 3
    1060
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  • 4
    1022
    सही
    गलत
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उत्तर : 4. "1022"
व्याख्या :

Answer: D) 1022 Explanation: Lowest 4-digit number is 1000.LCM of 3, 4 and 5 is 60.Dividing 1000 by 60, we get the remainder 40. Thus, the lowest 4-digit number that exactly divisible by 3, 4 and 5 is 1000 + (60 - 40) = 1020.Now, add the remainder 2 that's required. Thus, the answer is 1022.

प्र: Find the odd one out of the series ? 35, 48, 54, 63, 81, 105 1881 0

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    63
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  • 2
    48
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  • 3
    35
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  • 4
    81
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उत्तर : 3. "35"
व्याख्या :

Answer: C) 35 Explanation: 48, 54, 63, 81 and 105 are divisible by 3 but not 35.

प्र: A tap can fill a tank in 6 hours. After half the tank is filled three more similar taps are opened. What is the total time taken to fill the tank completely ? 1141 0

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    4 hrs 15 min
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  • 2
    3 hrs 24 min
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  • 3
    4 hrs 51 min
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  • 4
    3 hrs 45 min
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उत्तर : 4. "3 hrs 45 min"
व्याख्या :

Answer: D) 3 hrs 45 min Explanation: Time taken by one tap to fill half of the tank = 3 hrs. Part filled by the taps in 1 hour = 4 x 1/6 = 2/3 Remaining part = 1 - 1/2 = 1/2 2/3 : 1/2 :: 1 : p p = 1/2 x 1 x 3/2 = 3/4 hrs. i.e., 45 min So, total time taken = 3 hrs 45 min.

प्र: International Day of United Nations Peacekeepers was observed on 1237 0

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    28 May
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  • 2
    29 May
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  • 3
    30 May
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  • 4
    31 May
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उत्तर : 2. "29 May"
व्याख्या :

Answer: B) 29 May Explanation: The United Nations General Assembly designated 29 May as the International Day of United Nations Peacekeepers. The day has two purposes: To honour the memory of the UN peacekeepers who have lost their lives in the cause of peace. To pay tribute to all the men and women who have served and continue to serve in UN Peacekeeping operations for their high level of professionalism, dedication and courage. The theme for the 2017 International Day of UN Peacekeepers is “Investing in Peace Around the World“.

प्र: A train 125 m long passes a man, running at 5 km/hr in the same direction in which the train is going, in 10 seconds. The speed of the train is ? 1468 0

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    45 kmph
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  • 2
    25 kmph
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  • 3
    30 kmph
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  • 4
    50 kmph
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उत्तर : 4. "50 kmph"
व्याख्या :

Answer: D) 50 kmph Explanation: Speed of the train relative to man = (125/10) m/sec = (25/2) m/sec. [(25/2) x (18/5)] km/hr = 45 km/hr. Let the speed of the train be 'S' km/hr. Then, relative speed = (S - 5) km/hr. S - 5 = 45 => S = 50 km/hr.

प्र: A candidate got 35% of the votes polled and he lost to his rival by 2250 votes. How many votes were cast ? 11904 0

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    7500
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  • 2
    6200
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  • 3
    5600
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  • 4
    4700
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उत्तर : 1. "7500"
व्याख्या :

Answer: A) 7500 Explanation: Let the candidates be A & B35%-----------A65%-----------B Difference of votes (65-35)% = 30% =>          30% ------- 2250Then for 100% -------- ?     => 7500

प्र: India has emerged as the _______largest aviation market in the world with a passenger traffic of over 10 crore reported for 2016-17. 1395 0

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    1st
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  • 2
    2nd
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  • 3
    3rd
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  • 4
    4th
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उत्तर : 3. "3rd"
व्याख्या :

Answer: C) 3rd Explanation: The central government has said that India has emerged as the 3rd largest aviation market in the world with a passenger traffic of over 10 crore reported for 2016-17. This was stated by minister of state for civil aviation Jayant Sinha at a media event on the achievements of the ministry of civil aviation on the completion of three years of the NDA government.

प्र: Robert is traveling on his cycle and has calculated to reach point A at 2 p.m. if he travels at 10 km/hr; he will reach there at 12 noon if he travels at 15 km/hr. At what speed must he travel to reach A at 1 p.m. ? 1465 0

  • 1
    20 kmph
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  • 2
    18 kmph
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  • 3
    12 kmph
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  • 4
    16 kmph
    सही
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उत्तर : 3. "12 kmph"
व्याख्या :

Answer: C) 12 kmph Explanation: Let the distance traveled be x km.Then, x/10 - x/15 = 23x - 2x = 60 => x = 60 km.Time taken to travel 60 km at 10 km/hr = 60/10 = 6 hrs.So, Robert started 6 hours before 2. p.m. i.e., at 8 a.m.Required speed = 60/5 = 12 kmph.

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