CAT Practice Question and Answer

Q: The compound interest on a certain sum for 2 years at 10% per annum is Rs. 1155. The simple interest on the same sum for double the time at half the rate percent per annum is ? 1619 1

  • 1
    Rs. 1100
    Correct
    Wrong
  • 2
    Rs. 5500
    Correct
    Wrong
  • 3
    Rs. 1400
    Correct
    Wrong
  • 4
    Rs. 4120
    Correct
    Wrong
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Answer : 1. "Rs. 1100"
Explanation :

Answer: A) Rs. 1100 Explanation: Let the sum be Rs.x. Then,     x1+101002-x=1155   ⇒x11102-1=1155   => x =5500   sum = Rs. 5500.   So, S.I = Rs. 5500×5×4100 = 1100

Q: Assuming the given statements to be true, find which of the two conclusions A and B given below is/are definitely true. Statements: C < T < L= P > Q,  N > C > Y Conclusions:   A. P > Y       B. Y < P 1619 0

  • 1
    only conclusion B is true.
    Correct
    Wrong
  • 2
    only conclusion A is true.
    Correct
    Wrong
  • 3
    neither conclusion I nor II is true.
    Correct
    Wrong
  • 4
    either conclusion I or II is true.
    Correct
    Wrong
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Answer : 1. "only conclusion B is true."
Explanation :

Answer: A) only conclusion B is true. Explanation: From given statements, we can conclude that N > C < T < L= P > Q  .....(1) Here given that C > Y but in eq(1) we got that C < T < T <= P => Y is definitely less than P. So only conclusion B is True.

Q: Logical Challenge 1618 0

  • 1
    24
    Correct
    Wrong
  • 2
    11
    Correct
    Wrong
  • 3
    14
    Correct
    Wrong
  • 4
    18
    Correct
    Wrong
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Answer : 3. "14"
Explanation :

Answer: C) 14 Explanation: 1 Grand mother 1 Mother 4 Wives 4x2 = 8 Daughters Total = 1 + 1 + 4 + 8 = 14 Female members.

Q: 12 men complete a work in 9 days. After they have worked for 6 days, 4 more men join them. How many days will they take to complete the remaining work ? 1618 0

  • 1
    2 days
    Correct
    Wrong
  • 2
    2.5 days
    Correct
    Wrong
  • 3
    2.25 days
    Correct
    Wrong
  • 4
    3 days
    Correct
    Wrong
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Answer : 3. "2.25 days"
Explanation :

Answer: C) 2.25 days Explanation: 1 man's 1 day work = 1/108 12 men's 6 day's work = 1/9 x 6 = 2/3 Remaining work = 1 - 2/3 = 1/3 16 men's 1 day work = 1/108 x 16 = 4/274/27 work is done by them in 1 day. 1/3 work is done by them in 27/4 x 1/3 = 9/4 days.

Q: Is air homogeneous or heterogeneous? 1618 0

  • 1
    homogeneous
    Correct
    Wrong
  • 2
    heterogeneous
    Correct
    Wrong
  • 3
    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 1. "homogeneous"
Explanation :

Answer: A) homogeneous Explanation: A Mixture is a material made up of two or more different substances which are mixed.   Mixtures can be either homogeneous or heterogeneous.   * A homogeneous mixture is a type of mixture in which the composition is uniform and every part of the solution has the same properties. * A heterogeneous mixture is a type of mixture in which the components can be seen, as there are two or more phases present.   Air is a homogeneous mixture of the gaseous substances nitrogen, oxygen, and smaller amounts of other substances.

Q: Who has been appointed as Managing Director of Export-Import Bank of India (Exim Bank) ? 1618 0

  • 1
    Arun Tiwari
    Correct
    Wrong
  • 2
    Sunil Mehta
    Correct
    Wrong
  • 3
    Ashwani Kumar
    Correct
    Wrong
  • 4
    David Rasquinha
    Correct
    Wrong
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Answer : 4. "David Rasquinha"
Explanation :

Answer: D) David Rasquinha Explanation:

Q: Which is the oldest tennis tournament in the world and also prestigious? 1618 0

  • 1
    Wimbledon
    Correct
    Wrong
  • 2
    US Open
    Correct
    Wrong
  • 3
    French Open
    Correct
    Wrong
  • 4
    Australian Open
    Correct
    Wrong
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Answer : 1. "Wimbledon"
Explanation :

Answer: A) Wimbledon Explanation: Wimbledon Tournament in the city London, is the prestigious and the oldest tournament in the world.

Q: Two trains cross each other in _____ time ? 1618 0

  • 1
    145 sec
    Correct
    Wrong
  • 2
    124 sec
    Correct
    Wrong
  • 3
    158 sec
    Correct
    Wrong
  • 4
    162 sec
    Correct
    Wrong
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Answer : 4. "162 sec"
Explanation :

Answer: D) 162 sec Explanation: Given two trains of length = 180 mts + 180 mts  The distance is = Length of trains = 360 mts  Speed = 58 - 50 = 8 kmph x 5/18 m/s Then, Time = dis/speed = (360x18) / (8x5) = 162 sec.

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