CAT Practice Question and Answer

Q: Two stations A and B are 200 km apart on a straight track. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet? 2170 0

  • 1
    12 a.m.
    Correct
    Wrong
  • 2
    1 p.m.
    Correct
    Wrong
  • 3
    11 a.m.
    Correct
    Wrong
  • 4
    12 p.m.
    Correct
    Wrong
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Answer : 4. "12 p.m."
Explanation :

Answer: D) 12 p.m. Explanation: Assume both trains meet after 'p' hours after 7 a.m.Distance covered by train starting from A in 'p' hours = 20p kmDistance covered by train starting from B in (p-1) hours = 25(p-1)Total distance = 200=> 20x + 25(x-1) = 200=> 45x = 225=> p= 5Means, they meet after 5 hours after 7 am, ie, they meet at 12 p.m.

Q: Most modern Banking Systems are based on 2169 0

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    commodity money
    Correct
    Wrong
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    100 percent reserves
    Correct
    Wrong
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    fractional reserves
    Correct
    Wrong
  • 4
    money of intrinsic value
    Correct
    Wrong
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Answer : 3. "fractional reserves"
Explanation :

Answer: C) fractional reserves Explanation: Most modern banking systems are based on Fractional reserves.   Fractional-reserve banking is the practice whereby a bank accepts deposits, makes loans or investments, but is required to hold reserves equal to only a fraction of its deposit liabilities. Reserves are held as currency in the bank, or as balances in the bank's accounts at the central bank. 1. In a fractional reserve banking system banks can create money through the lending process. 2. A fractional reserve banking system is susceptible to bank panics. 3. Bank panics are a risk of fractional reserve banking, but are unlikely when banks are highly regulated and lend prudently.

Q: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 2169 0

  • 1
    34 years
    Correct
    Wrong
  • 2
    26 years
    Correct
    Wrong
  • 3
    24 years
    Correct
    Wrong
  • 4
    36 years
    Correct
    Wrong
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Answer : 4. "36 years"
Explanation :

Answer: D) 36 years Explanation: Let present ages of Sushanth = w, Krish = x, Rishi = y and Rohit = z , thenw + x + y = 43 x 3 = 129 ---(i) andw + y + z = 49 x 3 = 147 ---(ii)Subtracting (i) from (ii), (w+y+z) - (w+x+y) = 147 - 129 , z - x = 18 ---(iii)Given Rohit's age=z=54, so from (iii), x = 54 - 18 = 36.Therefore, Krish age is 36 years.

Q: By investing Rs. 1620 in 8% stock, Michael earns Rs. 135. The stock is then quoted at ? 2168 0

  • 1
    Rs. 145
    Correct
    Wrong
  • 2
    Rs. 245.1
    Correct
    Wrong
  • 3
    Rs. 96
    Correct
    Wrong
  • 4
    Rs. 75
    Correct
    Wrong
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Answer : 3. "Rs. 96"
Explanation :

Answer: C) Rs. 96 Explanation: Michel earns Rs. 135 by investing Rs. 1620To earn Rs. 8 how much he have to invest...? = (8 x 1620)/135 = Rs. 96

Q: What will be added to the unit digits of the number 86236 so that number will be divisible by 9  ? 2168 0

  • 1
    1
    Correct
    Wrong
  • 2
    2
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 2. "2"
Explanation :

Answer: B) 2 Explanation: A number is divisible by 9 only if the sum of the digits of the number is divisible by 9. Here 86236 = 8 + 6 + 2 + 3 + 6 = 25 We must add 2 to 25 to become 27 which is divisible by 9.

Q: On BBC World News channel last night they showed an informative program about new innovations in medical imaging, which you would have found interesting. 2168 0

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    there was an informative program about innovations in medical imaging, a program you would have found interesting.
    Correct
    Wrong
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    they showed an informative program about innovations in medical imaging, which you would have found interesting.
    Correct
    Wrong
  • 3
    there was an informative program about new innovations in medical imaging, that you would have found interesting.
    Correct
    Wrong
  • 4
    they showed an informative program about new innovations in medical imaging, which you would have found interesting.
    Correct
    Wrong
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Answer : 1. "there was an informative program about innovations in medical imaging, a program you would have found interesting."
Explanation :

Answer: A) there was an informative program about innovations in medical imaging, a program you would have found interesting. Explanation: They is incorrect when talking of the television channel. New is redundant. And which must have a clear antecedent.   Hence, Only Option A satisfies and clears all the flaws in the given sentence.

Q: Which of the Following is an Amorphous solid? 2167 0

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    Quartz Glass(Sio2)
    Correct
    Wrong
  • 2
    Chrome Alum
    Correct
    Wrong
  • 3
    Silicon Carbide(SiC)
    Correct
    Wrong
  • 4
    Graphite
    Correct
    Wrong
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Answer : 1. "Quartz Glass(Sio2)"
Explanation :

Answer: A) Quartz Glass(Sio2) Explanation: An amorphous or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal. In Brief, An amorphous solid is any noncrystalline solid in which the atoms and molecules are not organized in a definite lattice pattern. Such solids include glass, plastic, and gel. Quartz glass (SiO2) is an amorphous solid due to its short range order of constituent particles. Note Quartz is a crystalline solid while quartz glass is an amorphous solid.

Q: What can be swallowed but can swallow you? 2167 0

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Answer :
Explanation :

Your Pride. Yes, you can swallow your pride or it can swallow you.

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