IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Raju sold an article by giving a discount of 8% for Rs. 17,940 and earn profit of 19.6 %. If he did not give discount then how much profit percentage he gets ? 1543 0

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    27%
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  • 2
    30%
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  • 3
    32%
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  • 4
    25%
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उत्तर : 2. "30%"
व्याख्या :

Answer: B) 30% Explanation: Let the M.R.P of an article be 100 %   Selling price of article =Rs. 17940   If he give a discount of 8 % then S.P = 92 % 92 % = 17490 100 % = 19500   Now C.P of the article is    17490 x 100/119.6 = 15000   If he did not give the discount, then    Required profit percentage =

प्र: Flower : Bud :: Plant : ? 1543 0

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    Seed
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  • 2
    Leaf
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    Twig
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  • 4
    Root
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उत्तर : 1. "Seed"
व्याख्या :

Answer: A) Seed Explanation: A bud is an undeveloped or embryonic shoot and may be specialized to develop flowers. Similarly, Seed is undeveloped and may be developed into a plant.   Hence, Flower : Bud :: Plant : Seed.

प्र: Solid Carbon dioxide is known as 1542 0

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    Wet Ice
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  • 2
    Dry Ice
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    Solid Ice
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    None
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उत्तर : 2. "Dry Ice"
व्याख्या :

Answer: B) Dry Ice Explanation: Dry ice or Cardice is the solid form of Carbon dioxide.   1. It has an advantage of lower temperature than the water ice and doesn't leave any residue.   2. The reason why it is called as Dry ice is because unlike the normal ice, it won't melt into liquid form. It directly evaporates into the air as gas. That is Solid to gas form passing through liquid state is a phenomenon called as Sublimation.   3. The primary use of dry ice is as cooling agent.

प्र: A person lends Rs. 1540 for five years and Rs. 1800 for four years. If he gets Rs. 1788 as interest on both amounts, what is the rate of interest ? 1541 0

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    14.5%
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  • 2
    11%
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    12%
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  • 4
    10.5%
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उत्तर : 3. "12%"
व्याख्या :

Answer: C) 12% Explanation: Let the interest rate be r% We know that, S.I = PTR/100 => (1540 x 5 x r)/100  +  (1800 x 4 x r)/100 = 1788 => r = 178800/14900 = 12%

प्र: 5 + 2 x 10 = 1541 0

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    70
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  • 2
    20
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  • 3
    25
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  • 4
    52
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उत्तर : 3. "25"
व्याख्या :

Answer: C) 25 Explanation: According to BODMAS rule, After multiplication only, addition is done. Hence, 5 + 2 x 10 = 5 + 20 = 25.

प्र: Who has become the first Indian woman to scale Mount Everest for the fourth time  ? 1540 0

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    Anshu Jamsenpa
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  • 2
    Dickey Dolma
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  • 3
    Lhakpa Sherpa
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  • 4
    Malavath Purna
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उत्तर : 1. "Anshu Jamsenpa"
व्याख्या :

Answer: A) Anshu Jamsenpa Explanation: Anshu Jamsenpa, the Indian mountaineer from Arunachal Pradesh, has scripted history by becoming the first Indian woman to scale the Mount Everest for the fourth time. She will attempt a double ascent to the world’s highest peak to make it a total five successful climbs. If she is successful with her double ascent this time, Ms Jamsenpa will set a record five climbs of Mt Everest.

प्र: What two countries have nearly 50% of global coal reserves? 1539 0

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    Iran & USA
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  • 2
    USA & China
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  • 3
    Russia & USA
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  • 4
    Brazil & Russia
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उत्तर : 3. "Russia & USA"
व्याख्या :

Answer: C) Russia & USA Explanation: United States and Russia have together almost 400 billion tones. Which represents nearly 50% of world's reserves of coal.

प्र: The headquarters of World Anti-Doping Agency are located at _____. 1539 0

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    Montreal
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    Belgium
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    Newyork
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    Geneva
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उत्तर : 1. "Montreal"
व्याख्या :

Answer: A) Montreal Explanation: The World Anti-Doping Agency (WADA) is a foundation created through a collective initiative led by the International Olympic Committee (IOC). It was set up on 10 November 1999 in Lausanne, Switzerland, as a result of what was called the "Declaration of Lausanne", to promote, coordinate and monitor the fight against drugs in sports. Since 2002, the organization's headquarters have been located in Montreal, Quebec, Canada.

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