CAT Practice Question and Answer
8Q: 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 05b5cc71be4d2b4197774f553
5b5cc71be4d2b4197774f553- 1TCSfalse
- 2Microsoftfalse
- 3IBMtrue
- 4Infosysfalse
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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.
Q: What is the four-digit number in which the first digit is 1/3 of the second,the third is the sum of the first and second, and the last is three times the second ? 919 05b5cc71be4d2b4197774f558
5b5cc71be4d2b4197774f558- Show AnswerHide Answer
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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 05b5cc71be4d2b4197774f549
5b5cc71be4d2b4197774f549- 120true
- 229false
- 328false
- 424false
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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 05b5cc71be4d2b4197774f54e
5b5cc71be4d2b4197774f54e- 12false
- 20false
- 31false
- 4-1true
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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.
Q: In three coloured boxes - Red, Green and Blue, 108 balls are placed. There are twice as many balls in the green and red boxes combined as there are in the blue box and twice as many in the blue box as there are in the red box. How many balls are there in the green box ? 2520 05b5cc71be4d2b4197774f544
5b5cc71be4d2b4197774f544- 176false
- 254true
- 364false
- 448false
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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 05b5cc71be4d2b4197774f53f
5b5cc71be4d2b4197774f53f- 1Both are equally goodfalse
- 29 3/4% stock at 117true
- 3Cannot be compared, as the total amount of investment is not givenfalse
- 411% stock at 143false
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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 05b5cc71be4d2b4197774f535
5b5cc71be4d2b4197774f535- 140false
- 230true
- 350false
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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 05b5cc71be4d2b4197774f53a
5b5cc71be4d2b4197774f53a- 172 yearsfalse
- 254 yearsfalse
- 360 yearstrue
- 447 yearsfalse
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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