IIT JEE Practice Question and Answer
8Q: ______ was named by the Arabs as City of gold ? 1568 15b5cc6c5e4d2b4197774dd0a
5b5cc6c5e4d2b4197774dd0a- 1Mumbaifalse
- 2Jaipurfalse
- 3Cooch Beharfalse
- 4Multantrue
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Answer : 4. "Multan"
Explanation :
Answer: D) Multan Explanation: Mumbai - City of Wealth Jaipur - Pink City Cooch Behar - City of Beauty
Q: Watson bought a book for Rs. 240 and sold to Johny at a profit of 50%. Johny wants to sell this book to Shekar so that he earns a profit of 25%. But Shekar is adamant at buying this book at a discount of 10%. What marked price should Johny quote to Shekar so as to achieve desired profit ? 1568 05b5cc6cae4d2b4197774e040
5b5cc6cae4d2b4197774e040- 1Rs. 450false
- 2Rs. 360false
- 3Rs. 415false
- 4Rs. 500true
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Answer : 4. "Rs. 500"
Explanation :
Answer: D) Rs. 500 Explanation: Watson bought the book for Rs. 240 and sold to Johny at a profit of 50%. S.P = C.P(1 + P%/100) => S.P for Watson = C.P for Johny = 240(1 + 50/100) = 240 x 1.5 = Rs. 360 Let Johny quoted the marked price of the book as Rs. M We know, SP = M.P(1 - Discount(%)/100) Here discount = 10% to Shekar, S.P for Johny = M(1 - 10/100) = 0.9M But Johny want to earn 25% profit, => S.P = C.P(1 + P%/100) => 0.9M = 360(1 + 25/100) => M = (360x1.25)/0.9 => M = Rs. 500 Therefore, Johny should quote Rs. 500 as the marked price of the book to get 25% profit and allowing 10% discount to Shekar.
Q: The world's tallest twisted tower is ? 1568 05b5cc6f8e4d2b4197774f04a
5b5cc6f8e4d2b4197774f04a- 1Tokyo Sky Treefalse
- 2BREN Towerfalse
- 3Burj Khalifafalse
- 4Infinity Towertrue
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Answer : 4. "Infinity Tower"
Explanation :
Answer: D) Infinity Tower Explanation: The world's tallest twisted tower, the Infinity Tower was launched in Dubai Marina on 10 June 2013.
Q: Is a mushroom an autotroph? 1568 05b5cc670e4d2b4197774c05c
5b5cc670e4d2b4197774c05c- 1TRUEfalse
- 2FALSEtrue
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Answer : 2. "FALSE"
Explanation :
Answer: B) FALSE Explanation: Mushrooms are heterotrophs. They are not plants or autotrophs. Every living thing that exists need energy in order to live. This energy ultimately comes from the sun, and only plants, or autotrophs, can directly use this energy to make food. Those organisms that cannot harness the sun's energy are known as heterotrophs. Mushrooms belong to kingdom Fungi and are heterotrophs because they decompose and consume nutrients from the soil. They are not green so they cannot photosynthesize For this reason, mushrooms and all other fungi are heterotrophs.
Q: The headquarters of the International court of Justice is situated at _____ ? 1568 05b5cc6c3e4d2b4197774dc36
5b5cc6c3e4d2b4197774dc36- 1Swedenfalse
- 2Genevafalse
- 3Londonfalse
- 4Haguetrue
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Answer : 4. "Hague"
Explanation :
Answer: D) Hague Explanation: International court of Justice (ICJ) is the main judicial organ or branch of the United Nations, sometimes people call it the World Court. ICJ was established in the year 1945 and has its headquarters at The Hague, Netherlands.
Q: On multiplying a number by 7, the product is a number each of whose digits is 3. The smallest such number is ? 1567 05b5cc6dfe4d2b4197774eac6
5b5cc6dfe4d2b4197774eac6- 1476190476false
- 248617false
- 347619true
- 44587962false
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Answer : 3. "47619"
Explanation :
Answer: C) 47619 Explanation: By hit and trail, we find that 47619 x 7 = 333333. 7) 333333 (47619 333333---------------- 0 And 476190476 x 7 = 3333333333 but smallest number is 47619.
Q: Maximum age limit of President of India 1567 05b5cc675e4d2b4197774c12f
5b5cc675e4d2b4197774c12f- 130false
- 235false
- 345false
- 4None of the abovetrue
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Answer : 4. "None of the above"
Explanation :
Answer: D) None of the above Explanation: There is no maximum age limit for the President of India. Minimum age limit for president of India is 35 years.
Q: An item is sold at a loss of 10%. Had it sold for Rs. 9 more, a profit of 25/2% would have gained. What is the cost price of the item? 1567 05b5cc688e4d2b4197774c2f0
5b5cc688e4d2b4197774c2f0- 1Rs. 90false
- 2Rs. 75false
- 3Rs. 55false
- 4Rs. 40true
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Answer : 4. "Rs. 40"
Explanation :
Answer: D) Rs. 40 Explanation: Let the cost price of the item = Rs. 50 Sold at 10% loss => for Rs. 50 loss S.P = Rs. 45 From the given data, 25/2 % gain if it is sold at Rs. 9 more 56.25 - 45 = 9 => 11.25 = 9 => 22.5 = 18 => 45 = 36 => 50 = ? => C.P = 50 x 3645 = 40 Hence, the Cost price of the item = Rs. 40.

