CAT Practice Question and Answer

Q: Name the company that has recently created the world’s smallest magnet using a single atom which can store one bit of data on it. 1235 0

  • 1
    TCS
    Correct
    Wrong
  • 2
    Microsoft
    Correct
    Wrong
  • 3
    IBM
    Correct
    Wrong
  • 4
    Infosys
    Correct
    Wrong
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Answer : 3. "IBM"
Explanation :

Answer: C) IBM Explanation: A team of researchers at IBM has created the world’s smallest magnet using a single atom which can store one bit of data on it.

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Answer :
Explanation :

It is given that the first digit is 1/3 of the second. There are 3 such possibilities 1)1 and 32)2 and 63)3 and 9 Now, the third digit is the sum of the first and second digits.1)1 + 3 = 4 2)2 + 6 = 83)3 + 9 = 12It is clear that option 3 is not possible. So we are left with only two options. Also, the last digit is three times the second, which rules out the second option. Hence, the answer is 1349.

Q: In a cricket match, five batsmen P, Q, R, S and T scored an average of 36 runs. S Scored 5 more than T; T scored 8 fewer than P; Q scored as many as S and T combined; and Q and R scored 107 between them. How many runs did T score ? 9669 0

  • 1
    20
    Correct
    Wrong
  • 2
    29
    Correct
    Wrong
  • 3
    28
    Correct
    Wrong
  • 4
    24
    Correct
    Wrong
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Answer : 1. "20"
Explanation :

Answer: A) 20 Explanation: Let the runs scored by P, Q, R, S and T be  a, b, c, d and e From given data, a + b + c + d + e = 36 x 5 = 180b + c = 107Let a = xe = x-8d = x-3now 3x - 11 + 107 = 1803x = 84x = 28e's score = 28-8 = 20

Q: Find the next number in the given series ? 3, 7, 6, 5, 9, 3, 12, 1, 15, . . . 2172 0

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

Answer: D) -1 Explanation: 3, 7, 6, 5, 9, 3, 12, 1, 15, ... has two different series 1) 3, 6, 9, 12, 15..... 2) 7, 5, 3, 1, ..... -1 is the next number.

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Answer : 2. "54"
Explanation :

Answer: B) 54 Explanation: Let R, G and B represent the number of balls in red, green and blue boxes respectively. Then, . R + G + B = 108 ...(i), G + R = 2B ...(ii) B = 2R ...(iii) From (ii) and (iii), we have G + R = 2x 2R = 4R or G = 3R. Putting G = 3R and B = 2R in (i), we get: R + 3R + 2R = 108 6R = 108 R = 18. Therefore Number of balls in green box = G = 3R = (3 x 18) = 54.

Q: Which is better investment : 11% stock at 143 (or) 9 3/4% stock at 117 ? 1644 0

  • 1
    Both are equally good
    Correct
    Wrong
  • 2
    9 3/4% stock at 117
    Correct
    Wrong
  • 3
    Cannot be compared, as the total amount of investment is not given
    Correct
    Wrong
  • 4
    11% stock at 143
    Correct
    Wrong
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Answer : 2. "9 3/4% stock at 117"
Explanation :

Answer: B) 9 3/4% stock at 117 Explanation: Let investment in each case be Rs. (143 x 117).   Income in 1st case = Rs.11143 x 143 x 117 = Rs. 1287.Income in 2nd case = Rs.394×117 x 143 x 117= Rs. 1394.25   Clearly, 9 3/4% stock at 117 is better.

Q: In a camp, there is a meal for 120 men or 200 children. If 150 children have taken the meal, how many men will be catered to with remaining meal ? 1251 0

  • 1
    40
    Correct
    Wrong
  • 2
    30
    Correct
    Wrong
  • 3
    50
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
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Answer : 2. "30"
Explanation :

Answer: B) 30 Explanation: Here given 120 men = 200 children therefore 1 child = 3/5 of Man------ step I Now given that the food was consumed by 150 children From step I we get 150 children =90 Men ( 1 child = 3/5 Man ie , 150 X 3/5 = 90)So the food is for (120-90) men = 30 Men

Q: If 6 years are subtracted from the present age of Arun and the remainder is divided by 18, then the present age of his grandson Gokul is obtained. If Gokul is 2 years younger to Madan whose age is 5 years, then what is the age of Arun ? 1526 0

  • 1
    72 years
    Correct
    Wrong
  • 2
    54 years
    Correct
    Wrong
  • 3
    60 years
    Correct
    Wrong
  • 4
    47 years
    Correct
    Wrong
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Answer : 3. "60 years"
Explanation :

Answer: C) 60 years Explanation: Let the Present age of arun is xGokul's age = 5-2 = 3x-6/18 = 3x-6 = 54x = 60Arun's present age = 60 years

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