CAT Practice Question and Answer

Q: Which of the following is a false statement? 1166 0

  • 1
    As bond order increases the strength of the bond increases
    Correct
    Wrong
  • 2
    Bond order is proportional to the bond length
    Correct
    Wrong
  • 3
    Molecules with negative bond order are highly unstable
    Correct
    Wrong
  • 4
    Bond order is inversely proportional to the bond length
    Correct
    Wrong
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Answer : 2. "Bond order is proportional to the bond length"
Explanation :

Answer: B) Bond order is proportional to the bond length Explanation: Bond order is proportional to the bond length is a False statement since Bond order is inversely proportional to the bond length.

Q: What is the capital of the country Turkmenistan ? 1165 0

  • 1
    Dushanbe
    Correct
    Wrong
  • 2
    Ashgabat
    Correct
    Wrong
  • 3
    Bishkek
    Correct
    Wrong
  • 4
    Astana
    Correct
    Wrong
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Answer : 2. "Ashgabat"
Explanation :

Answer: B) Ashgabat Explanation:

Q: What is the minimum period of time for which one can open an FD(Fixed Deposit) account ? 1165 0

  • 1
    15 days
    Correct
    Wrong
  • 2
    6 months
    Correct
    Wrong
  • 3
    7 days
    Correct
    Wrong
  • 4
    1 year
    Correct
    Wrong
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Answer : 3. "7 days"
Explanation :

Answer: C) 7 days Explanation:

Q: When a number is divided by 138 the remainder is 26. What will be the remainder if the same number is divided by 23 ? 1164 0

  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    3
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 3. "3"
Explanation :

Answer: C) 3 Explanation: Number = quotient x divisor + remainder;so, herenumber = 138 k + 26=> (23 x 6k) + (23+3)=> 23(6k+1)+3so, remainder is 3.

Q: O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ? 1162 0

  • 1
    10
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    35/4
    Correct
    Wrong
  • 4
    45/4
    Correct
    Wrong
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Answer : 4. "45/4"
Explanation :

Answer: D) 45/4 Explanation: As clear from the figure itself, triangle OQX and triangle O'PX are similar. So, OQ/O'P = OX/O'X => OX = (7/9)xO'X And since, OX + O'X = 20 => (7/9)xO'X + O'X = 20 => O'X = 45/4

Q: How can we get 24 as an answer by using 6, 11, 3 and 9? 1161 0

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Answer :
Explanation :

This can be solved in two ways using only 6, 11, 9 and 3 we must get 24. 1. {[(11–6) x 3] + 9} By solving this we get 5 x 3 + 9 = 15 + 9 = 24.   2. [(9–6) x (11–3)] = 3 x 8 = 24.

Q: A mother can do a certain job in x hours. Her daughter takes twice as long to do the job. Working together, they can do the job in 6 hours. How many hours does the mother take to do the job ? 1160 0

  • 1
    3
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    12
    Correct
    Wrong
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Answer : 3. "9"
Explanation :

Answer: C) 9 Explanation: The mother completes the job in x hours.So, the daughter will take 2x hours to complete the same job.   In an hour, the mother will complete 1/x of the total job.In an hour, the daughter will complete 1/2x of the total job.   So, if the mother and daughter work together, in an hour they will complete 1/x + 1/2x of the job.i.e., in an hour they will complete 3/2x of the job.   The question states that they complete the entire task in 6 hours if they work together.i.e., they complete 1/6 th of the task in an hour.   Equating the two information, we get 3/2x = 1/6By solving for x, we get 2x = 18 or x = 9.   The mother takes 9 hours to complete the job.

Q: A simple interest earned on certain amount is triple the money when invested for 16 years.what is the interest rate offered ? 1159 0

  • 1
    13.33 %
    Correct
    Wrong
  • 2
    14.25 %
    Correct
    Wrong
  • 3
    16.98 %
    Correct
    Wrong
  • 4
    18.75 %
    Correct
    Wrong
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Answer : 4. "18.75 %"
Explanation :

Answer: D) 18.75 % Explanation: Given,S.I = 3 Principal Amount=> 3A = A x 16 x R/100By solving, we get => R = 18.75%

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