CAT प्रश्न और उत्तर का अभ्यास करें
8प्र: At a dinner party every two guests used a bowl of rice between them, every three guests used a bowl of dal between them and every four used a bowl of meat between them. There were altogether 65 dishes. How many guests were present at the party ? 2547 05b5cc720e4d2b4197774f636
5b5cc720e4d2b4197774f636- 160true
- 274false
- 382false
- 458false
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उत्तर : 1. "60"
व्याख्या :
Answer: A) 60 Explanation: Let, no. of rice bowl = xno. of dal bowl = yno. of meat bowl = z Then, x + y + z = 65 ....(1) Also given that, 2x = 3y = 4z substituting value of y & z in terms of x i.e. y = 2x/3 and z = x/2 in eq (1),We get x = 30. As 1 rice bowl is shared between 2 guests, Therefore, there are 60 guests.
प्र: A tank-full petrol in Veeru’s Car last for 20 days. If he starts using 25% more every day, how many days will the tank-full petrol last? 2544 05b5cc774e4d2b41977750020
5b5cc774e4d2b41977750020- 118 daysfalse
- 212 daysfalse
- 314 daysfalse
- 416 daystrue
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उत्तर : 4. "16 days"
व्याख्या :
Answer: D) 16 days Explanation: The analogy here is like this: Veeru has 20 lt of petrol and he uses 1 lt per each day and consumes it in 20 days. If he uses 1.25 lt every day, in how many days it will be consumed?We considered 1.25 lt here because it’s 25% more than 1 lt. The answer would be 20/1.25=16 days.
प्र: Where does the series number on a map appear? 2541 05b5cc6a0e4d2b4197774ca8b
5b5cc6a0e4d2b4197774ca8b- 1Upper right marginfalse
- 2Lower left marginfalse
- 3Both A & Btrue
- 4Not Existfalse
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उत्तर : 3. "Both A & B"
व्याख्या :
Answer: C) Both A & B Explanation: The series number is found in both the upper right margin and the lower left margin. It is a sequence reference expressed either as a four-digit numeral (1125) or as a letter, followed by a three- or four-digit numeral (M661, T7110).
प्र: A man can row against the current three fourth of a kilometer in 15 min and returns same distance in 10 min, then ratio of his speed to that of current? 2541 05b5cc6a8e4d2b4197774ce95
5b5cc6a8e4d2b4197774ce95- 15:1true
- 23:1false
- 34:1false
- 42:1false
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उत्तर : 1. "5:1"
व्याख्या :
Answer: A) 5:1 Explanation: Let the speed of the man in still water = p kmph Speed of the current = s kmph Now, according to the questions (p + s) x 10 = (p - s) x 15 2p + 2s = 3p - 3s => p : s = 5 : 1 Hence, ratio of his speed to that of current = 5:1.
प्र: 5 men and 3 boys can together cultivate a 23 acre field in 4 days and 3 men and 2 boys together can cultivate a 7 acre field in 2 days. How many boys will be needed together with 7 men, if they cultivate 45 acre of field in 6 days. 2538 05b5cc69de4d2b4197774c8ad
5b5cc69de4d2b4197774c8ad- 16false
- 24false
- 32true
- 43false
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उत्तर : 3. "2"
व्याख्या :
Answer: C) 2 Explanation: Let work done by 1 man in i day be m and Let work done by 1 boy in 1 day be b From the given data, 4(5m + 3b) = 23 20m + 12b = 23....(1) 2(3m + 2b) = 7 6m + 4b = 7 ....(2) By solving (1) & (2), we get m = 1, b = 1/4 Let the number of required boys = n 6(7 1 + n x 1/4) = 45 => n = 2.
प्र: In a row of thirty boys, R is fourth from the right end and W is tenth from the left end . How many boys are there between R and W? 2538 05b5cc7f3e4d2b41977751eb6
5b5cc7f3e4d2b41977751eb6- 115false
- 216true
- 317false
- 4can't be determinedfalse
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उत्तर : 2. "16"
व्याख्या :
Answer: B) 16 Explanation: W = 10th from the left R = 4th from the right = (30 - 4 + 1= ) 27th from left No of boys between R and W = (27 - 10) - 1 = 16
प्र: कौन सी एक अच्छी वेब सुरक्षा रणनीति नहीं है ? 2537 55b5cc6c1e4d2b4197774db6e
5b5cc6c1e4d2b4197774db6e- 1अनावश्यक संकलक और दुभाषियों को हटा देंtrue
- 2डेमो प्रोग्राम जोड़ें, ताकि उपयोगकर्ता उत्पादन डेटा तक पहुंच के बिना सिस्टम का परीक्षण कर सकेंfalse
- 3उन उपयोगकर्ताओं को सीमित करें जो सॉफ़्टवेयर लोड कर सकते हैं, संपादित कर सकते हैं या फ़ाइलें जोड़ सकते हैंfalse
- 4वेब सर्वर तक पहुंच को प्रतिबंधित करें कम से कम पोर्ट खुले रखेंfalse
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उत्तर : 1. "अनावश्यक संकलक और दुभाषियों को हटा दें"
व्याख्या :
Answer: A) Remove unnecessary compilers and interpreters Explanation:
प्र: In a queue, Shankar is ninth from the rear end. Althaf's place is eighth from the front. Nitu is standing between the two. What could be the minimum numbers of boys standing in the queue ? 2536 05b5cc74ae4d2b4197774fa9a
5b5cc74ae4d2b4197774fa9a- 118false
- 214true
- 322false
- 424false
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उत्तर : 2. "14"
व्याख्या :
Answer: B) 14 Explanation: 1 2 3 4 5 6(Shankar) 7(Nitu) 8(Althaf) 9 10 11 12 13 14Here, Althaf is 8th from front, Shankar is 9th from rear end and Nitu is between themSo minimum no. of boys standing in the queue = 14