CAT Practice Question and Answer

Q: Simple interest on a certain sum at 7% per annum for 4 years is Rs. 2415. What will be the compound interest on the same principal at 4% per annum in two years? 1360 0

  • 1
    Rs. 704
    Correct
    Wrong
  • 2
    Rs. 854
    Correct
    Wrong
  • 3
    Rs. 893
    Correct
    Wrong
  • 4
    Rs. 914
    Correct
    Wrong
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Answer : 1. "Rs. 704"
Explanation :

Answer: A) Rs. 704 Explanation: We know that, S.I. = PTR100⇒ P = S.I x 100T x RAnd also,C.I = P1 + R100n- 1 From given data, P = Rs. 8625 Now, C.I  = 86251+41002-1= 862526252-1= 8625676625-1= 8625 x 51625C.I = Rs. 703.80

Q: Find the next number in the given number series? 0, 3, 8, 15, 24, ? 1728 0

  • 1
    35
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    34
    Correct
    Wrong
  • 4
    36
    Correct
    Wrong
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Answer : 1. "35"
Explanation :

Answer: A) 35 Explanation: Here the given number series is 0, 3, 8, 15, 24, ? The next number in the given series can be found such a way that the number series follows a pattern, 22 - 4 = 032 - 6 = 342  - 8 = 852 - 10 = 1562 - 12 = 2472 - 14 = 35Hence, the next number in the iven series is 35.

Q: The ratio of Pens and Pencils in a shop is 3 : 2 respectively. The average number of Pens and Pencils is 180. What is the number of Pencils in the shop? 2482 0

  • 1
    444
    Correct
    Wrong
  • 2
    344
    Correct
    Wrong
  • 3
    244
    Correct
    Wrong
  • 4
    144
    Correct
    Wrong
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Answer : 4. "144"
Explanation :

Answer: D) 144 Explanation: Given ratio of pens and pencils = 3 :2 Number of Pens = 3x Number of Pencils = 2x Average number of pencils & Pens = 3x + 2x2 = 180 5x = 360 => x = 72 Hence, the number of pencils = 2x = 72 x 2 = 144.

Q: which of the following are chemical changes? 1457 0

  • 1
    Cooking of Food
    Correct
    Wrong
  • 2
    Digestion of Food
    Correct
    Wrong
  • 3
    Freezing of water
    Correct
    Wrong
  • 4
    Water is heated up
    Correct
    Wrong
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Answer : 1. "Cooking of Food"
Explanation :

Answer: A) A & B Explanation: A) Cooking of Food  ------ Chemical Change B) Digestion of Food ----- Chemical Change C) Freezing of water ----- Physical Change D) Water is heated up ---- Physical Change because here the chemical composition of the substance changes in A & B only.   Since we know that, If the chemical composition is changing then it is a chemical change and if the chemical composition is remaining the same, then it is a physical change.

Q: In how many different ways can the letters of the word 'HAPPYHOLI' be arranged? 1467 0

  • 1
    89,972
    Correct
    Wrong
  • 2
    90,720
    Correct
    Wrong
  • 3
    72,000
    Correct
    Wrong
  • 4
    81,000
    Correct
    Wrong
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Answer : 2. "90,720"
Explanation :

Answer: B) 90,720 Explanation: The given word HAPPYHOLI has 9 letters These 9 letters can e arranged in 9! ways. But here in the given word letters H & P are repeated twice each Therefore, Number of ways these 9 letters can be arranged is  9!2! x 2! = 9 x 8 x 7 x 6 x 5 x 4 x 32 = 90,720 ways.

Q: What travels around the world but stays in one spot? 1697 0

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Answer :
Explanation :

Therefore the answer for What travels around the world but stays in one spot is STAMP or any other thing that acts as a stamp does. Ex. the letter in the envelope etc...   Since, Several things have the possibility, but the word travel evokes that it would move.

Q: Which of the following is NOT a Union Territory? 2533 0

  • 1
    Daman and Diu
    Correct
    Wrong
  • 2
    Puducherry
    Correct
    Wrong
  • 3
    Shillong
    Correct
    Wrong
  • 4
    Lakshadweep
    Correct
    Wrong
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Answer : 3. "Shillong"
Explanation :

Answer: C) Shillong Explanation: We know that The seven union territories of India are are: Chandigarh. Dadra and Nagar Haveli. Daman and Diu. Lakshadweep. Puducherry. Andaman and Nicobar Islands. National Capital Territory of Delhi.   Hence, Shillong is not a Union Territory.

Q: Which of the following is an example of market failure? 1502 0

  • 1
    Prices do not reflect the full social cost of production
    Correct
    Wrong
  • 2
    A firm goes out of business because it cannot find a market for its products
    Correct
    Wrong
  • 3
    Prices rise so that the consumers cannot afford the products they want to buy
    Correct
    Wrong
  • 4
    Producer surplus is maximized
    Correct
    Wrong
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Answer : 1. "Prices do not reflect the full social cost of production"
Explanation :

Answer: A) Prices do not reflect the full social cost of production Explanation: Prices do not reflect the full social cost of production is an example of Market failure.   A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. It also occurs if externalities are not accounted for. If a firm fails to maximize its profits this is not a general market failure.

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