IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: How many words can be formed with or without meaning by using three letters out of k, l, m, n, o without repetition of alphabets. 1441 05b5cc6abe4d2b4197774d058
5b5cc6abe4d2b4197774d058- 160true
- 2120false
- 3240false
- 430false
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उत्तर : 1. "60"
व्याख्या :
Answer: A) 60 Explanation: Given letters are k, l, m, n, o = 5 number of letters to be in the words = 3 Total number of words that can be formed from these 5 letters taken 3 at a time without repetation of letters = 5P3 ways. ⇒ 5P3 = 5 x 4 x 3 = 60 words.
प्र: What is formed by all the ecosystems of the earth? 1440 05b5cc69fe4d2b4197774ca2d
5b5cc69fe4d2b4197774ca2d- 1Biospheretrue
- 2Tropospherefalse
- 3Stratospherefalse
- 4Ionospherefalse
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उत्तर : 1. "Biosphere"
व्याख्या :
Answer: A) Biosphere Explanation: A biosphere is the sum of all the ecosystems established on planet Earth. An ecosystem is an area in which the plants and animals all interact to create a living environment. Therefore ecosystem is a smaller unit of earth, all ecosystems together form the earth.
प्र: 3 : 12 :: 5 : ? 1440 05b5cc6b9e4d2b4197774d702
5b5cc6b9e4d2b4197774d702- 117false
- 230true
- 326false
- 432false
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उत्तर : 2. "30"
व्याख्या :
Answer: B) 30 Explanation: 332 + 3 = 12552 + 5 = 30
प्र: Simplify 413 + 215 + 414 = ? 1439 05b5cc6afe4d2b4197774d235
5b5cc6afe4d2b4197774d235- 110 47/60true
- 211 45/73false
- 311 47/36false
- 410 35/48false
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उत्तर : 1. "10 47/60"
व्याख्या :
Answer: A) 10 47/60 Explanation: The given equation is in Mixed fraction. Now to solve this type of fractions, 413 + 215 + 414 =?? = 4 + 2 + 4 + 13 + 15 + 14 ? = 10 + 4760? = 104760
प्र: The World Music Day is celebrated across the world on 1438 05b5cc639e4d2b4197774ba96
5b5cc639e4d2b4197774ba96- 1June 26false
- 2June 21true
- 3June 17false
- 4June 11false
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उत्तर : 2. "June 21"
व्याख्या :
Answer: B) June 21 Explanation: The World Music Day is celebrated across the world on 21 June. The day is also known as 'Fete de la Musique' after a music festival that began in France in 1982. This Day was first celebrated on 21st June 1982.
प्र: What are the end products of cellular respiration? 1437 05b5cc62fe4d2b4197774b96f
5b5cc62fe4d2b4197774b96f- 1ATP, Glucosefalse
- 2Glucose, Oxygenfalse
- 3Oxygen, Waterfalse
- 4ATP, Watertrue
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उत्तर : 4. "ATP, Water"
व्याख्या :
Answer: D) ATP, Water Explanation: Cellular respiration is the three-step process by which cells make ATP using glucose and oxygen. Oxygen and glucose are both reactants in the process of cellular respiration. The main product of cellular respiration is ATP, waste products include carbon dioxide and water.
प्र: When is 99 more than 100? 1436 05b5cc69de4d2b4197774c913
5b5cc69de4d2b4197774c913- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A microwave. Generally when you run a microwave for '99' it runs for 1 minute and 39 seconds. '100' runs for 1 minute.
प्र: What is the currency of South Korea? 1435 05b5cc6a6e4d2b4197774cdd4
5b5cc6a6e4d2b4197774cdd4- 1Kronafalse
- 2Zlotyfalse
- 3Wontrue
- 4Nakfafalse
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उत्तर : 3. "Won"
व्याख्या :
Answer: C) Won Explanation:

