IIT JEE Practice Question and Answer
8Q: What is the currency of South Korea? 1027 05b5cc6a6e4d2b4197774cdd4
5b5cc6a6e4d2b4197774cdd4- 1Kronafalse
- 2Zlotyfalse
- 3Wontrue
- 4Nakfafalse
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Answer : 3. "Won"
Explanation :
Answer: C) Won Explanation:
Q: There are five bags. In the first bag we put some fruits. Each bag the number of fruits is reduced by 1/4. The last bag contains 4. Then the number of fruits in the first bag is ? 1025 05b5cc715e4d2b4197774f477
5b5cc715e4d2b4197774f477- 12596false
- 21024true
- 3256false
- 464false
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Answer : 2. "1024"
Explanation :
Answer: B) 1024 Explanation: Fruits reduced by 1/4.Total no. of bags N = 5Formula to find no. of fruits in 1st bag = 4^nLast Bag = 4 fruits.That means, 4th bag = 4 x 4 = 16 fruits3rd bag = 16 x 4 = 64 fruits2nd bag = 64 x 4 = 256 fruits1st bag = 256 x 4= 1024 fruits.
Q: Simplify 413 + 215 + 414 = ? 1025 05b5cc6afe4d2b4197774d235
5b5cc6afe4d2b4197774d235- 110 47/60true
- 211 45/73false
- 311 47/36false
- 410 35/48false
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Answer : 1. "10 47/60"
Explanation :
Answer: A) 10 47/60 Explanation: The given equation is in Mixed fraction. Now to solve this type of fractions, 413 + 215 + 414 =?? = 4 + 2 + 4 + 13 + 15 + 14 ? = 10 + 4760? = 104760
Q: Which part of the respiratory system does emphysema damage? 1025 05b5cc62fe4d2b4197774b974
5b5cc62fe4d2b4197774b974- 1Nosefalse
- 2Lungstrue
- 3Tracheafalse
- 4Mouthfalse
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Answer : 2. "Lungs"
Explanation :
Answer: B) Lungs Explanation: Emphysema is a condition that involves damage to the walls of the air sacs (alveoli) of the lung i.e, primarily causes shortness of breath due to over-inflation of the alveoli. First, emphysema causes holes to gradually form inside the lungs' air sacs, thereby weakening their internal structure and inhibiting the exchange of oxygen and carbon dioxide.
Q: In how many ways can the letters of the word 'LEADER' be arranged ? 1024 05b5cc71ee4d2b4197774f58b
5b5cc71ee4d2b4197774f58b- 1360true
- 2420false
- 3576false
- 4220false
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Answer : 1. "360"
Explanation :
Answer: A) 360 Explanation: No. of letters in the word = 6No. of 'E' repeated = 2Total No. of arrangement = 6!/2! = 360
Q: What is the number that should come in the place of question mark ? 1050 420 168 67.2 ? 1024 05b5cc741e4d2b4197774f9c2
5b5cc741e4d2b4197774f9c2- 119.11false
- 214.25false
- 310.752false
- 426.88true
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Answer : 4. "26.88"
Explanation :
Answer: D) 26.88 Explanation: Given series follows the rule of 1050/2.5 = 420420/2.5 = 168168/2.5 = 67.2so 67.2/2.5 = 26.88
Q: "The Law of Kepler" is related with which among the following ? 1023 05b5cc6bfe4d2b4197774da38
5b5cc6bfe4d2b4197774da38- 1Planetary Motiontrue
- 2Law of Conservation of energyfalse
- 3Law of Gravitationfalse
- 4Nonefalse
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Answer : 1. "Planetary Motion"
Explanation :
Answer: A) Planetary Motion Explanation: Kepler's laws of planetary motion are three scientific laws describing the motion of planets around the Sun. Kepler’s three laws of planetary motion can be stated as follows: (1) All planets move about the Sun in elliptical orbits, having the Sun as one of the foci. (2) A radius vector joining any planet to the Sun sweeps out equal areas in equal lengths of time. (3) The squares of the sidereal periods (of revolution) of the planets are directly proportional to the cubes of their mean distances from the Sun.
Q: Rifath Sharook has designed the world’s lightest satellite “KalamSat”. He hails from which country ? 1022 05b5cc6dee4d2b4197774ea6f
5b5cc6dee4d2b4197774ea6f- 1Russiafalse
- 2Pakistanfalse
- 3Dubaifalse
- 4Indiatrue
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Answer : 4. "India"
Explanation :
Answer: D) India Explanation: Indian teen Rifath Sharook from Tamil Nadu has designed the world’s lightest & smallest satellite named “KalamSat”. The satellite weighs only 64 grams and will be launched by NASA on June 21, 2017. With this, he will become the first Indian student to have his experiment launched by NASA. The main role of the satellite will be to demonstrate the performance of 3-D printed carbon fibre. The satellite has been designed in a way which will have a 240-minute mission in space and will operate for 12 minutes in a micro-gravity environment of space.