IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What is one benefit of lifelong physical activity? 6244 05b5cc64ae4d2b4197774bbf1
5b5cc64ae4d2b4197774bbf1- 1high blood pressurefalse
- 2increase in healthy eating habitsfalse
- 3high physiological agetrue
- 4prevention of weight gainfalse
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उत्तर : 3. "high physiological age"
व्याख्या :
Answer: C) high physiological age Explanation:
प्र: Without any stoppage, a person travels a certain distance at an average speed of 42 km/h, and with stoppages he covers the same distance at an average speed of 28 km/h. How many minutes per hour does he stop? 6189 05b5cc75ee4d2b4197774fcbb
5b5cc75ee4d2b4197774fcbb- 115 minutesfalse
- 220 minutestrue
- 318 minutesfalse
- 422 minutesfalse
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उत्तर : 2. "20 minutes"
व्याख्या :
Answer: B) 20 minutes Explanation: Let the total distance to be covered is 84 kms.Time taken to cover the distance without stoppage = 84/42 hrs = 2 hrsTime taken to cover the distance with stoppage = 84/28 = 3 hrs.Thus, he takes 60 minutes to cover the same distance with stoppage.Therefore, in 1 hour he stops for 20 minutes.
प्र: A person is asked to put in a basket one apple when ordered 'one', one guava when ordered 'two', one orange whe ordered 'three' and is asked to take out from the basket one apple and one guava both when ordered 'four'. The ordered sequence executed by the person is as follows : 1 2 3 3 2 1 4 2 3 1 4 2 2 3 3 1 4 1 1 3 2 3 4 1. How many apples will be there in the basket at the end of the above order sequence ? (a) 4 (b) 3 (c) 2 (d) 1 2. How many fruits will be there in the basket at the end of the above order sequence ? (a) 13 (b) 17 (c) 9 (d) 11 6160 05b5cc754e4d2b4197774fbc3
5b5cc754e4d2b4197774fbc3- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
1. Answer (c) Each time we order 1, one apple is added to the basket but each time when 4 is ordered, one apple is removed from it. Required number of apples = number of 1's - number of 4's = 6 - 4 = 2 2. Answer (d) Each time we order 1, 2 or 3, one fruit is added to the basket but when ever we order 4, two fruits are removed from it. Required number = Number of 1's + Number of 2's + Number of 3's - 2 x (Number of 4's) = 6 + 6 + 7 - (2x4) = 19 - 8 = 11.
प्र: Which of the following is not a correct variable type? 6159 05b5cc698e4d2b4197774c666
5b5cc698e4d2b4197774c666- 1realtrue
- 2charfalse
- 3floatfalse
- 4doublefalse
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उत्तर : 1. "real"
व्याख्या :
Answer: A) real Explanation: A variable provides us with named storage that our programs can manipulate. Each variable in C++ has a specific type, which determines the size and layout of the variable's memory the range of values that can be stored within that memory and the set of operations that can be applied to the variable. The name of a variable can be composed of letters, digits, and the underscore character. It must begin with either a letter or an underscore. Upper and lowercase letters are distinct because C++ is case-sensitive − Basic types of variables: 1. bool Stores either value true or false. 2. char Typically a single octet (one byte). This is an integer type. 3. int The most natural size of an integer for the machine. 4. float A single-precision floating point value. 5. double A double-precision floating point value. 6. void Represents the absence of type. 7. wchar_t A wide character type.
प्र: Thunder is to Lightning as Grape is to 6159 05b5cc6b8e4d2b4197774d67f
5b5cc6b8e4d2b4197774d67f- 1Winefalse
- 2Soilfalse
- 3Seedtrue
- 4Waterfalse
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उत्तर : 3. "Seed"
व्याख्या :
Answer: C) Seed Explanation: Lightning produces thunder just as a seed will eventually produce a grape.
प्र: If 'x' means '-', '÷' means '+', '-' means '÷' and '+' means 'x', then 24 - 4 ÷ 6 x 3 + 4 = ? 6138 05b5cc736e4d2b4197774f856
5b5cc736e4d2b4197774f856- 10true
- 21false
- 32false
- 43false
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उत्तर : 1. "0"
व्याख्या :
Answer: A) 0 Explanation: From the given information in the question24 ÷ 4 + 6 - 3 x 4 6 + 6 - 12 = 0
प्र: The Manager of a company accepts only one employees leave request for a particular day. If five employees namely Roshan, Mahesh, Sripad, Laxmipriya and Shreyan applied for the leave on the occasion of Diwali. What is the probability that Laxmi priya’s leave request will be approved ? 6111 05b5cc741e4d2b4197774f97c
5b5cc741e4d2b4197774f97c- 11false
- 21/5true
- 35false
- 44/5false
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उत्तर : 2. "1/5"
व्याख्या :
Answer: B) 1/5 Explanation: Number of applicants = 5On a day, only 1 leave is approved.Now favourable events = 1 of 5 applicants is approvedProbability that Laxmi priya's leave is granted = 1/5.
प्र: ATP is a compound that is synthesized when 6097 05b5cc615e4d2b4197774b6c4
5b5cc615e4d2b4197774b6c4- 1digestive enzymes break amino acids into smaller piecesfalse
- 2energy stored in nitrogen is released froming amino acidsfalse
- 3energy is stored in chemical bonds is released during cellular respirationtrue
- 4chemical bonds between carbon atoms are formed by during photo synthesisfalse
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उत्तर : 3. "energy is stored in chemical bonds is released during cellular respiration"
व्याख्या :
Answer: C) energy is stored in chemical bonds is released during cellular respiration Explanation: