IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: In a 40 litre mixture of alcohol & water, the ratio of alcohol and water is 5 : 3. If 20% of this mixture is taken out and the same amount of water is added then what will be the ratio of alcohol and water in final mixture? 2673 05b5cc6b2e4d2b4197774d3be
5b5cc6b2e4d2b4197774d3be- 11:1true
- 22:1false
- 33:1false
- 41:2false
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उत्तर : 1. "1:1"
व्याख्या :
Answer: A) 1:1 Explanation: Quantity of alohol in the mixture = 40 x 5/8 = 25 lit Quantity of water = 40 - 25 = 15 lit According to question, Required ratio = 20 - 40 x 20100 x 5815 - 40 x 20100 x 38 + 40 x 20100 = 2015 - 3 + 8 = 1 : 1
प्र: Where are saved files stored in computer ? 2672 05b5cc69ee4d2b4197774c95b
5b5cc69ee4d2b4197774c95b- 1Hard disktrue
- 2Cachefalse
- 3RAMfalse
- 4Any of abovefalse
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उत्तर : 1. "Hard disk"
व्याख्या :
Answer: A) Hard disk Explanation: Most operating systems store files on a hard disk.
प्र: For Galvanizing Iron which of the following Metals is used? 2671 05b5cc6b1e4d2b4197774d33c
5b5cc6b1e4d2b4197774d33c- 1Zinctrue
- 2Leadfalse
- 3Aluminiumfalse
- 4Copperfalse
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उत्तर : 1. "Zinc"
व्याख्या :
Answer: A) Zinc Explanation: Zinc metal is used for Galvanizing Iron. Galvanization or Galvanizing :: Galvanization is the process of applying a protective zinc coating to steel or iron, to prevent rusting. Most common method of Galvanization is Hot-Dip Galvanizing in which parts are submerged in a bath of molten zinc.
प्र: Find the odd man out from the given alternatives ? 2670 05b5cc6cee4d2b4197774e232
5b5cc6cee4d2b4197774e232- 197false
- 2233false
- 3437true
- 4599false
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उत्तर : 3. "437"
व्याख्या :
Answer: C) 437 Explanation: Except 437 all others are prime numbers.
प्र: Which of the following statements about financial aid are true? 2670 05b5cc619e4d2b4197774b72f
5b5cc619e4d2b4197774b72f- 1Financial aid is available to community college students.true
- 2Most high school varsity sports team members will receive an athletic scholarship.false
- 3Elite, private colleges don't offer financial aid packages.false
- 4Only children of unemployed parents can't qualify for financial aid.false
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उत्तर : 1. "Financial aid is available to community college students."
व्याख्या :
Answer: A) Financial aid is available to community college students. Explanation:
प्र: Samuel Gompers was a leading proponent of what industrial issue? 2669 05b5cc626e4d2b4197774b85f
5b5cc626e4d2b4197774b85f- 1the formation of trustsfalse
- 2the formation of labor unionstrue
- 3the crushing of labor unionsfalse
- 4vertical integrationfalse
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उत्तर : 2. "the formation of labor unions"
व्याख्या :
Answer: B) the formation of labor unions Explanation: Samuel Gompers was a leading proponent of workers' rights. He was the first president of the American Federation of Labor, an organization that represented skilled workers from many different industries. Gompers advocated using collective bargaining or negotiations and strikes to gain greater rights for workers.
प्र: If 200 cats kill 200 mice in 200 days, then 8 cats would kill 8 mice in how many days ? 2667 05b5cc720e4d2b4197774f5fe
5b5cc720e4d2b4197774f5fe- 18 daysfalse
- 2200 daystrue
- 3800 daysfalse
- 41 dayfalse
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उत्तर : 2. "200 days"
व्याख्या :
Answer: B) 200 days Explanation: As given200 cats kill 200 mice in 200 days1 cats kill 1 mouse in 200 daysThen 8 cats kill 8 mice in 200 days.
प्र: Eye Test Logical Challenge 2667 05b5cc6d2e4d2b4197774e47b
5b5cc6d2e4d2b4197774e47b- 115true
- 214false
- 316false
- 417false
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उत्तर : 1. "15"
व्याख्या :
Answer: A) 15 Explanation: