IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: ______ was named by the Arabs as City of gold ? 1461 1

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    Mumbai
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  • 2
    Jaipur
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  • 3
    Cooch Behar
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  • 4
    Multan
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    गलत
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उत्तर : 4. "Multan"
व्याख्या :

Answer: D) Multan Explanation: Mumbai - City of Wealth Jaipur - Pink City Cooch Behar - City of Beauty

प्र: National Highway No: _____  is called as Shershah Suri Marg ? 3593 0

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    NH-1
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  • 2
    NH-3
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  • 3
    NH-7
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  • 4
    NH-5
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उत्तर : 1. "NH-1"
व्याख्या :

Answer: A) NH-1 Explanation: N.H. 1 is also called The Sher Shah Suri Marg between Delhi and Amritsar.

प्र: A, B and C started a business where their initial capital was in the ratio of 2:3:4. At the end of 6 months, A invested an amount such that his total capital became equal to C's initial capital investment. If the annual profit of B is Rs. 3000 then what is the total profit  ? 1217 0

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    Rs. 8,640
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  • 2
    Rs. 9,850
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  • 3
    Rs. 10,000
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    गलत
  • 4
    Rs. 11,220
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उत्तर : 3. "Rs. 10,000"
व्याख्या :

Answer: C) Rs. 10,000 Explanation: Ratio of investments of A, B & C = 2×6+4×6 : 3×12 : 4×12 = 36 : 36 : 48 = 6 : 6 : 8 But given that the annual profit of B is Rs. 3000 => 6 ratio = 3000 Then for the total annual profit of partners is 20 ratio = 3000 x 20/6 = 10,000.

प्र: In an exhibition, Almond bought a painting for Rs. 20000. He later sold it to Olive for Rs. 23000. Olive sold it to Sarah for double the profit percentage that Almond earned. At what price should Sarah sell this painting to earn 8% profit ? 1642 0

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    Rs. 34,410
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  • 2
    Rs. 31,184
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  • 3
    Rs. 29,999
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  • 4
    Rs. 32,292
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उत्तर : 4. "Rs. 32,292"
व्याख्या :

Answer: D) Rs. 32,292 Explanation: Almond Selling price = CP(1 + P%/100) => CP = 20000, SP = 23000 => 23000 = 20000 (1 + P/100) => P% = 100(23000/20000 - 1) = 15 Then, Olive's P% = 30% SP for Olive = CP for Sarah = 23000(1 + 30/100) = 29900 Now Sarah wants to earn profit of 8% => Sp for Sarah = 29900(1 + 8/100) = Rs. 32,292.

प्र: 88%of 370 +24% of 210-x =118 find x 2047 0

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उत्तर :
व्याख्या :

From the given equation, 88x370/100 + 24x210/100 - 118 = x => x = 325.6 + 50.4 - 118 x = 258.

प्र: Indians who have been featured on Forbe's list of the 100 Greatest Living Business Minds ? 1100 0

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    Ratan Tata
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  • 2
    Lakshmi Mittal
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  • 3
    Vinod Khosla
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  • 4
    All of the above
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उत्तर : 4. "All of the above"
व्याख्या :

Answer: D) All of the above Explanation: Three Indians – Ratan Tata, Lakshmi Mittal and Vinod Khosla have been featured on Forbe's list of the 100 Greatest Living Business Minds.

प्र: Navaneet has thrice the money Poonam has and Poonam has 25% more money than Hebah. If the average money of the three is Rs. 350, What is the amount that Navaneet has ? 1412 0

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    Rs. 175
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  • 2
    Rs. 220.75
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  • 3
    Rs. 218.55
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  • 4
    Rs. 656.25
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उत्तर : 4. "Rs. 656.25"
व्याख्या :

Answer: D) Rs. 656.25 Explanation: Assume Hebah has Rs. M Since 25% more money at Poonam => Money at Poonam = M + (25% of M) => Money at Poonam = M + 0.25M = Rs. 1.25M Money with Navaneet is thrice the money with Poonam, => Money at Navaneet = 3(1.25M) = Rs. 3.75M Now, sum of all Money = (M + 1.25M + 3.75M) = Rs. 6M But given the average of the money is Rs. 350 => 6M/3 = 350 => 2M = 350 => M = 350/2 = Rs. 175 => Amount of money Navaneet has = Rs. 3.75M = 3.75 x 175 = Rs. 656.25.

प्र: What should come in place of question mark (?) in the following number series? 38, 195, ?, 4905, 24530, 122655 1354 0

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    980
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    885
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    824
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  • 4
    1021
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उत्तर : 1. "980"
व्याख्या :

Answer: A) 980 Explanation: The given series follows the pattern that,   ×5+5,   ×5+5,   ×5+5,   ×5+5,   ×5+5   38 x 5 + 5  = 195   195 x 5 + 5 = 980   980 x 5 + 5 = 4905   4905 x 5 + 5 = 24530   24530 x 5 + 5 = 122655   So the missing number is 980 .

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