CAT Practice Question and Answer

Q: What is the first step in Photosynthesis? 1748 1

  • 1
    Formation of ATP
    Correct
    Wrong
  • 2
    Joining of 3-carbon atom to form glucose
    Correct
    Wrong
  • 3
    Ionization of water
    Correct
    Wrong
  • 4
    Excitement of an electron of chlorophyll photon of light
    Correct
    Wrong
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Answer : 4. "Excitement of an electron of chlorophyll photon of light"
Explanation :

Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

Q: What will come in place of the question mark (?) in the following number series  ? 12, 24, 26.5, 79.5, ?, 330 1747 0

  • 1
    211
    Correct
    Wrong
  • 2
    101.5
    Correct
    Wrong
  • 3
    82.5
    Correct
    Wrong
  • 4
    99
    Correct
    Wrong
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Answer : 3. "82.5"
Explanation :

Answer: C) 82.5 Explanation: The given series    12   24   26.5   79.5   ?   330 follows a pattern that,   12 x 2 = 24   24 + 2.5 = 26.5   26.5 x 3 = 79.5   79.5 + 3 = 82.5   82.5 x 4 = 330   Hence, the missing number is 82.5

Q: A train covers 180 km distance in 5 hours. Another train covers the same distance in 1 hour less. What is the difference in the distances covered by these trains in one hour if they are moving in the same direction? 1746 0

  • 1
    15 kms
    Correct
    Wrong
  • 2
    9 kms
    Correct
    Wrong
  • 3
    6 kms
    Correct
    Wrong
  • 4
    18 kms
    Correct
    Wrong
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Answer : 2. "9 kms"
Explanation :

Answer: B) 9 kms Explanation: The first train covers 180 kms in 5 hrs => Speed = 180/5 = 36 kmph Now the second train covers the same distance in 1 hour less than the first train => 4 hrs => Speed of the second train = 180/4 = 45 kmph Now, required difference in distance in 1 hour = 45 - 36 = 9 kms.

Q: Who is the author of the book "Panditharadya Charitham" ? 1742 0

  • 1
    Tikkana
    Correct
    Wrong
  • 2
    Ganapathideva
    Correct
    Wrong
  • 3
    Yerrana
    Correct
    Wrong
  • 4
    Palkuriki Somanatha
    Correct
    Wrong
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Answer : 4. "Palkuriki Somanatha"
Explanation :

Answer: D) Palkuriki Somanatha Explanation:

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Answer : 2. "20%"
Explanation :

Answer: B) 20% Explanation: Let the Cost of Production of the article = 100 Then, Labour Cost = 20 Raw Material = 10 Other Expenditure = 100 - 10 – 20 = 70 Selling Price of the article  = 120 After increasing Labour and Raw material cost by 40% & 20% respectively, New Labour cost = 28 New Raw material cost = 12 New Cost of Production = 70 + 28 + 12 = 110 Then, New SP = 110% of 120 = 120 x 110/100 = 132 => New Gain = 132 - 110 = 22 => New Profit % = 22 x 100/110 = 20%

Q: H.C.F of 4 x 27 x 3125, 8 x 9 x 25 x 7 and 16 x 81 x 5 x 11 x 49 is : 1742 0

  • 1
    360
    Correct
    Wrong
  • 2
    180
    Correct
    Wrong
  • 3
    90
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 2. "180"
Explanation :

Answer: B) 180 Explanation: 4 x 27 x 3125 = 22 × 33 × 55 ;   8 x 9 x 25 x 7 = 23 × 32 × 52 × 7   16 x 81 x 5 x 11 x 49 = 24 × 34 × 5 × 11 × 72   H.C.F = 22 × 32 × 5 = 180.

Q: If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days what is time taken by 15 men and 20 boys? 1741 0

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

Answer: A) 4 days Explanation: Given that  6 men and 8 boys can do a piece of work in 10 days  26 men and 48 boys can do the same in 2 days   As the work done is equal, 10(6M + 8B) = 2(26M + 48B) 60M + 80B = 52M + 96B => M = 2B => B = M/2 ……(1)   Now Put (1) in 15M + 20B => 15M + 10M = 25M Now, 6M + 8B in 10 days => (6M + 4M) 10 = 100M Then D(25M) = 100M => D = 4 days.

Q: Galileo was an Italian Astronomer who 1740 0

  • 1
    Discovered 4 satellites of Mars
    Correct
    Wrong
  • 2
    Developed the Telescope
    Correct
    Wrong
  • 3
    Discovered that the movement of pendulum produces a regular time measurement
    Correct
    Wrong
  • 4
    Both B & C
    Correct
    Wrong
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Answer : 4. "Both B & C"
Explanation :

Answer: D) Both B & C Explanation: Galileo Galilei (1564-1642) was an Italian Astronomer who        1) Discovered 4 satellites of Jupiter 2) Developed Telescope   3) Discovered that the movement of pendulum produces a regular time measurement He is Physicist, Mathematician, inventor, and philosopher Too.

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