IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Plants that grow in Saline Water are called 2121 15b5cc6b3e4d2b4197774d477
5b5cc6b3e4d2b4197774d477- 1Sciophytesfalse
- 2Bryophytesfalse
- 3Halophytestrue
- 4Hydrophytesfalse
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उत्तर : 3. "Halophytes"
व्याख्या :
Answer: C) Halophytes Explanation: Plants that grow in Saline Water are called Halophytes.
प्र: Which city is known as "Queen of Arabian Sea" ? 2118 05b5cc6cfe4d2b4197774e321
5b5cc6cfe4d2b4197774e321- 1Vizagfalse
- 2Kakinadafalse
- 3Mumbaifalse
- 4Kochitrue
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उत्तर : 4. "Kochi"
व्याख्या :
Answer: D) Kochi Explanation:
प्र: Find the missing number in the given number series? 5 11 21 44 ? 175 2118 05b5cc6a2e4d2b4197774cb99
5b5cc6a2e4d2b4197774cb99- 186true
- 278false
- 394false
- 4102false
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उत्तर : 1. "86"
व्याख्या :
Answer: A) 86 Explanation: Here the given number series is 5 11 21 44 ? 175 Now the given series follows a pattern, that x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,... Then the missing number is x2 - 2 = 44 x 2 - 2 = 88 - 2 = 86 Hence, the missing number in the number series is 86.
प्र: Selling an article at a profit of 20%, Aman gets Rs. 400 more than selling at a loss of 20%. The cost price of the article is ? 2117 05b5cc6c2e4d2b4197774dbeb
5b5cc6c2e4d2b4197774dbeb- 1Rs.1000true
- 2Rs. 1020false
- 3Rs.1210false
- 4Rs.1140false
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उत्तर : 1. "Rs.1000"
व्याख्या :
Answer: A) Rs.1000 Explanation: Cost price of the article is given by = 400x100/(20+20) = Rs.1000
प्र: If x = √8 - √7, y = √6 - √5 and z = √10 - 3, which of the following is true ? 2117 05b5cc6dbe4d2b4197774e955
5b5cc6dbe4d2b4197774e955- 1x > y < zfalse
- 2x < y < zfalse
- 3x > y > zfalse
- 4z < x < ytrue
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उत्तर : 4. "z < x < y"
व्याख्या :
Answer: D) z < x < y Explanation: x = √8 - √7 = 1/(√8 + √7) and y = √6 - √5 = 1/(√6 + √5) and z = √10 - 3 = 1/(√10 + 3) As (√8 + √7) > (√6 + √5), (√8 - √7) < (√6 - √5) As (√10 + 3) > (√8 + √7) > (√6 + √5) z < x < y.
प्र: Which one of the following launched world's longest scheduled flight ? 2116 05b5cc75ce4d2b4197774fc7a
5b5cc75ce4d2b4197774fc7a- 1Qatar Airwaystrue
- 2British Airwaysfalse
- 3Jet Bluefalse
- 4Air Indiafalse
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उत्तर : 1. "Qatar Airways"
व्याख्या :
Answer: A) Qatar Airways Explanation: The Qatar Airways has launched the World’s longest scheduled commercial service to ply between Doha to Auckland. The inaugural service of Flight QR920 took off on February 5, 2017 from Doha and will take 16 hours and 20 minutes to travel 14,535 kilometers to reach Auckland in New Zealand.This makes Qatar Airways to launch the World’s fastest and longest passenger service in terms of flying time. Prior to this, emirates launched the world’s longest non-stop scheduled commercial flight with a service from Dubai to Auckland, spanning 14,200 kilometres.
प्र: The least number of four digits which is divisible by 4, 6, 8 and 10 is ? 2116 05b5cc6e9e4d2b4197774edf7
5b5cc6e9e4d2b4197774edf7- 11107false
- 21080true
- 31100false
- 41208false
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उत्तर : 2. "1080"
व्याख्या :
Answer: B) 1080 Explanation: LCM of 4, 6, 8 and 10 = 120120) 1000 (8 960 ------ 40 The least number of four digits which is divisible by 4, 6, 8 and 10 => 1000 + 120 - 40 = 1080.
प्र: Which of the following is not transferred by alveoli? 2114 05b5cc645e4d2b4197774bbd6
5b5cc645e4d2b4197774bbd6- 1Gasesfalse
- 2Oxygenfalse
- 3Bloodtrue
- 4Carbondioxidefalse
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उत्तर : 3. "Blood"
व्याख्या :
Answer: C) Blood Explanation: The main function of the pulmonary alveoli is to perform the transfer and exchange of gases. Here in the given options, blood is only one which is not gas. Hence, blood is not transferred by alveoli.

