CAT Practice Question and Answer

Q: P, Q, R, S, T and U are six consecutive odd numbers and their average is 52. What is the product of P and U ? 2556 0

  • 1
    2212
    Correct
    Wrong
  • 2
    2154
    Correct
    Wrong
  • 3
    2349
    Correct
    Wrong
  • 4
    2679
    Correct
    Wrong
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Answer : 4. "2679"
Explanation :

Answer: D) 2679 Explanation: Let x, x+2, x+4, x+6, x+8 and x+10 are six consecutive odd numbers. Given that their average is 52 Then, x + x+2 + x+4 + x+6 + x+8 + x+10 = 52×6 6x + 30 = 312 x = 47 So Product = 47 × 57 = 2679

Q: Eye Test Logical Challenge 2556 0

  • 1
    15
    Correct
    Wrong
  • 2
    14
    Correct
    Wrong
  • 3
    16
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 1. "15"
Explanation :

Answer: A) 15 Explanation:

Q: Find the missing number in the given number series? 514, 470, ?, 415, 404 2553 0

  • 1
    441
    Correct
    Wrong
  • 2
    437
    Correct
    Wrong
  • 3
    426
    Correct
    Wrong
  • 4
    420
    Correct
    Wrong
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Answer : 2. "437"
Explanation :

Answer: B) 437 Explanation: Given number series is 514   470   ?   415   404       Here the pattern it follows is   514   514 - 44 = 470   470 - 33 = 437   437 - 22 = 415   415 - 11 = 404   Hence, the missing number in the given number series is 437.

Q: For Galvanizing Iron which of the following Metals is used? 2551 0

  • 1
    Zinc
    Correct
    Wrong
  • 2
    Lead
    Correct
    Wrong
  • 3
    Aluminium
    Correct
    Wrong
  • 4
    Copper
    Correct
    Wrong
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Answer : 1. "Zinc"
Explanation :

Answer: A) Zinc Explanation: Zinc metal is used for Galvanizing Iron.   Galvanization or Galvanizing :: Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. Most common method of Galvanization is Hot-Dip Galvanizing in which parts are submerged in a bath of molten zinc.

Q: Ayush was born two years after his father's marriage. His mother is five years younger than his father but 20 years older than Ayush who is 10 years old. At what age did the father get married ? 2548 0

  • 1
    25 years
    Correct
    Wrong
  • 2
    24 years
    Correct
    Wrong
  • 3
    23 years
    Correct
    Wrong
  • 4
    22 years
    Correct
    Wrong
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Answer : 3. "23 years"
Explanation :

Answer: C) 23 years Explanation: Ayush's present age = 10 years.His mother's present age = (10 + 20) years = 30 years.Ayush's father's present age = (30 + 5) years = 35 years.Ayush's father's age at the time of Ayush's birth = (35 - 10) years = 25 years. Therefore Ayush's father's age at the time of marriage = (25 - 2) years = 23 years.

Q: Which of the following is not an Output device? 2547 0

  • 1
    Scanner
    Correct
    Wrong
  • 2
    Moniter
    Correct
    Wrong
  • 3
    Printer
    Correct
    Wrong
  • 4
    Speakers
    Correct
    Wrong
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Answer : 1. "Scanner"
Explanation :

Answer: A) Scanner Explanation:

Q: A contractor undertook to complete a piece of work in 120 Days and employed 140 men upon it. At the end of 66 days only half of the work was done,so he put on 25 extra men. By how much time did he exceed the specific time ? 2546 0

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

Answer: A) 2 days Explanation: work done=total number of person x number of days;half of work done = 140 x 66;For half of remaining work 25 extra men are added.Therefore, total men for half work remaining = 140 + 25 = 165;Let 2nd half work will be completed in K days;140 x 66 = 165 x KK = 122;Hence, extra days => 122-120 = 2days.

Q: Impulse conduction is fastest in neurons that are 2546 0

  • 1
    Myelinated
    Correct
    Wrong
  • 2
    Motor
    Correct
    Wrong
  • 3
    Unmyelinated
    Correct
    Wrong
  • 4
    Sensory
    Correct
    Wrong
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Answer : 1. "Myelinated"
Explanation :

Answer: A) Myelinated Explanation: A myelinated nerve can be found int the brain or spinal cord as well as the peripheral nervous system, it is white and is surrounded by schwann cells or oligodendrocytes.

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