CAT प्रश्न और उत्तर का अभ्यास करें

प्र: A bird lover was asked how many birds he had in the basket. He replied that there were all parrots but six, all pigeons but six, and all koel but six. How many birds he had in the basket in all ? 2816 0

  • 1
    8
    सही
    गलत
  • 2
    18
    सही
    गलत
  • 3
    9
    सही
    गलत
  • 4
    10
    सही
    गलत
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उत्तर : 3. "9"
व्याख्या :

Answer: C) 9 Explanation: There were all parrots but six means that six birds were not parrots but only pigeons and koels. Similarly, number of parrots + number of koels = 6 and number of parrots + number of pigeons = 6. This is possible when there are 3 parrots, 3 pigeons and 3 koels i.e. 9 birds in all.

प्र: Who is appointed as new Deputy Governor of RBI in place of R. Gandhi in March, 2017 ? 994 0

  • 1
    Shrugdi Vilas
    सही
    गलत
  • 2
    BP Kanungo
    सही
    गलत
  • 3
    Harun R. Khan
    सही
    गलत
  • 4
    Mundra
    सही
    गलत
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उत्तर : 2. "BP Kanungo"
व्याख्या :

Answer: B) BP Kanungo Explanation: BP Kanungo was appointed as Deputy Governor in Reserve Bank of India (RBI) for three years. The Appointments Committee of Cabinet (ACC) has approved his appointment to the post with effect from the date of taking over the charge on or after April 3, an order issued by Personnel Ministry said. He has been appointed in place of R Gandhi, it said.Kanungo was in March last year appointed as Executive Director in the central bank.

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उत्तर : 1. "11 days"
व्याख्या :

Answer: A) 11 days Explanation: Let 'n' number of days it take to complete.   we know that sum of n number= n/2[2a+(n-1)d]where a=20,d=1;n/2[2x20+(n-1)1]=275n[n+39]=550n2 + 39n - 550 = 0 n2+ 50n - 11n - 550 = 0(n-11) (n-50) = 0n-11 = 0;n = 11(Days).

प्र: An individual deposited 20% of 25% of 30% of what he had into his account with a bank. If he deposited Rs.750, how much was he having initially with him before depositing ? 1448 0

  • 1
    Rs. 38000
    सही
    गलत
  • 2
    Rs. 47000
    सही
    गलत
  • 3
    Rs. 50000
    सही
    गलत
  • 4
    Rs. 35000
    सही
    गलत
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उत्तर : 3. "Rs. 50000"
व्याख्या :

Answer: C) Rs. 50000 Explanation: Let 'x' be the amount he had in the bank. => 20/100(25/100(30/100(x))) = 750 x = 750 x 8000/120 = Rs. 50000

प्र: Ravi and Ramu are partners in a business.Ravi contributes 1/6 of the capital for 16 months and Ramu received 2/3 of the profit. For how long Ramu's money was used ? 1830 0

  • 1
    11 months
    सही
    गलत
  • 2
    10 months
    सही
    गलत
  • 3
    9 months
    सही
    गलत
  • 4
    8 months
    सही
    गलत
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उत्तर : 4. "8 months"
व्याख्या :

Answer: D) 8 months Explanation: Let the total Profit be Z.Ramu's profit share is 2/3 of profit (i.e 2Z/3)Ravi's profit is (Z-2Z/3) =Z/3Hence the profit ratio is , Ravi : Ramu = Z/3 : 2Z/3 = 1:2 Let total Capital be Rs.X and Ramu has contributed for Y months.Since Ramu's profit share is 2/3, his invest share will be 2/3 in capital. Ravi's invest for 16 months / Ramu's invest for Y months = Ravi's profit share / Ramu's profit sharei.e. (X/6 x 16) / (2X/3 x Y) = 1/2 Solving the above equation, we get Y = 8.So Ramu's money has been used for 8 months.

प्र: In how many ways can the letters of the word 'LEADER' be arranged ? 1024 0

  • 1
    360
    सही
    गलत
  • 2
    420
    सही
    गलत
  • 3
    576
    सही
    गलत
  • 4
    220
    सही
    गलत
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उत्तर : 1. "360"
व्याख्या :

Answer: A) 360 Explanation: No. of letters in the word = 6No. of 'E' repeated = 2Total No. of arrangement = 6!/2! = 360

प्र: As per the data released by RBI, which bank witnessed the most number of frauds during April-December period of 2016 ? 1165 0

  • 1
    HDFC Bank
    सही
    गलत
  • 2
    Standard Chartered Bank
    सही
    गलत
  • 3
    SBI Bank
    सही
    गलत
  • 4
    ICICI Bank
    सही
    गलत
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उत्तर : 4. "ICICI Bank"
व्याख्या :

Answer: D) ICICI Bank Explanation: ICICI Bank topped the list of banks that witnessed the most number of frauds during April-December period of 2016 with state-owned SBI taking the second spot, RBI data said.

प्र: A boat travels 72 km downstream in 8 hours and 84 km upstream in 12 hours. Find the speed of the boat in still water and the speed of the water current ? 1540 0

  • 1
    9 and 3 kmph
    सही
    गलत
  • 2
    6 and 7 kmph
    सही
    गलत
  • 3
    8 and 1 kmph
    सही
    गलत
  • 4
    7 and 2 kmph
    सही
    गलत
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उत्तर : 3. "8 and 1 kmph"
व्याख्या :

Answer: C) 8 and 1 kmph Explanation: Downstream speed = 72km/8hrs  = 9 kmphupstream speed = 84km/12hrs = 7 kmphspeed of boat = avg of downstream and upstream speedsspeed of boat = (9+7)/2kmph = 8 kmph.current speed = half of the difference of downstream and upstream speedscurrend speed = (9-7)/2kmph = 1 kmph

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