CAT प्रश्न और उत्तर का अभ्यास करें

प्र: If price of rice increased by 25%, so that a man is can able to purchase 5 kg less rice in Rs. 500. Find the original price of rice per kg ? 2169 0

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    Rs. 20
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  • 2
    Rs. 24
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  • 3
    Rs. 26
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  • 4
    Rs. 29
    सही
    गलत
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उत्तर : 1. "Rs. 20"
व्याख्या :

Answer: A) Rs. 20 Explanation: Let the original price of rice be Rs. x Let rice a man can buy for Rs. 500 at rs. x/kg be = R kgs From given data, for Rs. 500 x ---- R kgs (x + 25x/100) ---- (R - 5) kgs => Rx = (R - 5)(x + 25x/100) => Rx = (R - 5)(125x/100) => 100Rx = 125Rx - 625x => R = 25 So at rate of Rs. x/kg, man get 25 kgs for Rs. 500 => x = 500/25 = Rs. 20

प्र: Which of the following Valleys is known as "Paradise of Earth" ? 2168 0

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    Kullu Valley
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  • 2
    Doon Valley
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  • 3
    Kangra Valley
    सही
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  • 4
    Kashmir Valley
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उत्तर : 4. "Kashmir Valley"
व्याख्या :

Answer: D) Kashmir Valley Explanation:

प्र: Two bus tickets from city K to L and three tickets from city K to M cost Rs. 77,  but three tickets from city K to L and two tickets from city K to M cost Rs. 73. What are the fares for cities L and M from K ? 2168 0

  • 1
    Rs. 13 and Rs. 17
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    गलत
  • 2
    Rs. 17 and Rs. 19
    सही
    गलत
  • 3
    Rs. 23 and Rs. 17
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    गलत
  • 4
    Rs. 13 and Rs. 19
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उत्तर : 1. "Rs. 13 and Rs. 17"
व्याख्या :

Answer: A) Rs. 13 and Rs. 17 Explanation: If fares for cities L and M from K are x and y respectively, then 2x + 3y = 77 or 6x + 9y = 231...(1)3x + 2y = 73 or 6x + 4y = 146...(2) subtracting 2 from 1, we get 5y = 85 y = Rs. 17 => x = Rs. 13

प्र: Fill in the blank with an appropriate word from the following options. Usually the room tariff in this hotel is higher. At present, it is low because of the------- season. 2167 0

  • 1
    Peak
    सही
    गलत
  • 2
    Off
    सही
    गलत
  • 3
    Down
    सही
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  • 4
    Slow
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उत्तर : 2. "Off"
व्याख्या :

Answer: B) Off Explanation: Season can be either at peak or off.Presently it is low, that is because of OFF season.

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उत्तर : 2. "535"
व्याख्या :

Answer: B) 535 Explanation: The number of points of intersection of 37 lines is C237. But 13 straight lines out of the given 37 straight lines pass through the same point A.   Therefore instead of getting C213 points, we get only one point A. Similarly 11 straight lines out of the given 37 straight lines intersect at point B. Therefore instead of getting C211 points, we get only one point B.    Hence the number of intersection points of the lines is C237-C213-C211 +2 = 535

प्र: In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ? 2165 0

  • 1
    625
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  • 2
    525
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  • 3
    425
    सही
    गलत
  • 4
    325
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उत्तर : 2. "525"
व्याख्या :

Answer: B) 525 Explanation: Given 40% minimum passing marks for boys = 483 + 117 = 600=> 1% = 600/40 => 100% = 600 x 100/40 = 1500Minimum passing marks for girls = 35% of 1500 = 35 x 1500/100 = 525.

प्र: A,B,C together can do a piece of work in 10 days.All the three started workingat it together and after 4 days,A left.Then,B and C together completed the work in 10 more days.In how many days can complete a work alone ? 2164 0

  • 1
    25
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  • 2
    24
    सही
    गलत
  • 3
    23
    सही
    गलत
  • 4
    21
    सही
    गलत
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उत्तर : 1. "25"
व्याख्या :

Answer: A) 25 Explanation: (A+B+C) do 1 work in 10 days. So (A+B+C)'s 1 day work=1/10 and as they work together for 4 days so workdone by them in 4 days=4/10=2/5 Remaining work=1-2/5=3/5   (B+C) take 10 more days to complete 3/5 work. So( B+C)'s 1 day work=3/50 Now A'S 1 day work=(A+B+C)'s 1 day work - (B+C)'s 1 day work=1/10-3/50=1/25 A does 1/25 work in in 1 day Therefore 1 work in 25 days.

प्र: The probability that a bowler bowled a ball from a point will hit by the batsman is ¼. Three such balls are bowled simultaneously towards the batsman from that very point. What is the probability that the batsman will hit the ball ? 2164 0

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    37/64
    सही
    गलत
  • 2
    27/56
    सही
    गलत
  • 3
    11/13
    सही
    गलत
  • 4
    9/8
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उत्तर : 1. "37/64"
व्याख्या :

Answer: A) 37/64 Explanation: Probability of not hitting the ball = 1- 1/4 =Then, the probability that the batsman will hit the ball =

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