IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: 82.5% of 2360? 2576 05b5cc60ae4d2b4197774b5a1
5b5cc60ae4d2b4197774b5a1- 11960false
- 21954false
- 31947true
- 41931false
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उत्तर : 3. "1947"
व्याख्या :
Answer: C) 1947 Explanation: Given 82.5% of 2360 82.5100 x 2360 = 0.825 x 2360 = 1947
प्र: What time will it be 18 hours from now in India, if in the USA it is 4:15 AM? (Hint : IST = US + 9:30 hrs) 2576 05b5cc699e4d2b4197774c6dc
5b5cc699e4d2b4197774c6dc- 11:45 in the afternoonfalse
- 27:45 in the eveningfalse
- 37:45 in the next morningtrue
- 41:45 in the next morningfalse
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उत्तर : 3. "7:45 in the next morning"
व्याख्या :
Answer: C) 7:45 in the next morning Explanation: We know that the time difference between India and USA is 9 hrs 30 min. India is 9:30 hrs ahead of USA. Time in India = 4:15 + 9:30 = 13:45 PM. Required Time after 18 hrs = 13:45 + 18 hrs = 7:45 AM. Hence it is 7:45 AM on the next morning.
प्र: Highest sugarcane producing state in India? 2570 05b5cc6a0e4d2b4197774ca81
5b5cc6a0e4d2b4197774ca81- 1Maharashtrafalse
- 2Uttar Pradeshtrue
- 3Gujaratfalse
- 4Uttarakhandfalse
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उत्तर : 2. "Uttar Pradesh"
व्याख्या :
Answer: B) Uttar Pradesh Explanation: Agriculture is the occupation of a majority of the Indian population. More than 65% of India's land area is under agriculture. Sugarcane is one of the most popular multipurpose crops in India and no part of the sugarcane goes waste. Uttar Pradesh is the highest sugarcane producing state in India followed by Maharashtra.
प्र: P, Q, R, S, T and U are six consecutive odd numbers and their average is 52. What is the product of P and U ? 2569 05b5cc6b9e4d2b4197774d711
5b5cc6b9e4d2b4197774d711- 12212false
- 22154false
- 32349false
- 42679true
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उत्तर : 4. "2679"
व्याख्या :
Answer: D) 2679 Explanation: Let x, x+2, x+4, x+6, x+8 and x+10 are six consecutive odd numbers. Given that their average is 52 Then, x + x+2 + x+4 + x+6 + x+8 + x+10 = 52×6 6x + 30 = 312 x = 47 So Product = 47 × 57 = 2679
प्र: Samuel Gompers was a leading proponent of what industrial issue? 2569 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: Li3PO4 compound name? 2569 05b5cc6a9e4d2b4197774cf14
5b5cc6a9e4d2b4197774cf14- 1Lithium perchloratefalse
- 2Lithium phyritefalse
- 3Lithium phosphatetrue
- 4Nonefalse
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उत्तर : 3. "Lithium phosphate"
व्याख्या :
Answer: C) Lithium phosphate Explanation: The given compund Li3PO4 name is Lithium phosphate. Lithium phosphate is a white crystal at room temperature. It is slightly soluble in water. It can be used to produce glass, disk, colorful phosphor powder. It can also be used as a catalyst in some reactions.
प्र: For Galvanizing Iron which of the following Metals is used? 2568 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: Sushma joins a job at 20 yrs. First 3 years salary is 10,000 p.a. Afterwards every year increment of 2,000 per year for 10 years. Then salary becomes constant till retirement. At retirement average salary is 25,000. (throughout career). At what age Sushma retires ? 2567 05b5cc711e4d2b4197774f3be
5b5cc711e4d2b4197774f3be- 150 yrstrue
- 247 yrsfalse
- 345 yrsfalse
- 442 yrsfalse
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उत्तर : 1. "50 yrs"
व्याख्या :
Answer: A) 50 yrs Explanation: Let age of retirement = Sso according to the given condition 25000(x-20)=10000 x 3 + 12000 + 14000 + 16000 + 18000 + 20000 + 22000 + 24000 + 26000 + 28000 + 30000 + 30000(S-33)= 30000 + 210000 + 30000S-990000= 30000S - 750000or 25000S - 500000 = 30000x - 750000or 5000x = 250000or S = 50 yrs.

