IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: What is the theme of 2017 World Migratory Bird Day ? 1385 05b5cc6cce4d2b4197774e124
5b5cc6cce4d2b4197774e124- 1Their future is our future – a healthy planet for migratory birds and peopletrue
- 2Networking for migratory birdsfalse
- 3Energy: make it bird friendlyfalse
- 4Destination flyways: Migratory bird and Tourismfalse
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उत्तर : 1. "Their future is our future – a healthy planet for migratory birds and people"
व्याख्या :
Answer: A) Their future is our future – a healthy planet for migratory birds and people Explanation: World Migratory Bird Day (WMBD) was initiated in 2006 and is an annual awareness-raising campaign highlighting the need for the conservation of migratory birds and their habitats. It has a global outreach and is an effective tool to help raise global awareness of the threats faced by migratory birds, their ecological importance, and the need for international cooperation to conserve them. Day for World Migratory Bird Day celebrations is 10 May.
प्र: 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 ? 1383 05b5cc715e4d2b4197774f477
5b5cc715e4d2b4197774f477- 12596false
- 21024true
- 3256false
- 464false
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उत्तर : 2. "1024"
व्याख्या :
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.
प्र: Which public sector bank has tied up with Tirumala Milk Products for providing loans to dairy farmers ? 1382 05b5cc6d5e4d2b4197774e624
5b5cc6d5e4d2b4197774e624- 1Axis Bankfalse
- 2ICICI Bankfalse
- 3State Bank Of Indiatrue
- 4HDFC Bankfalse
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उत्तर : 3. "State Bank Of India"
व्याख्या :
Answer: C) State Bank Of India Explanation: The State Bank of India (SBI) has tied-up with Tirumala Milk Products to provide loans to dairy farmers who supply milk to the latter. As per the scheme for financing dairy units, SBI offers loans for construction of shed, and purchase of milch animals, milking machine, and chaff cutter. Apart from this, the bank also provides loans to dairy societies for modernisation and creation of infrastructure such as purchase of automatic milk collection system, purchase of transport vehicles and bulk chilling unit. The Tirumala Milk Products is a South- based company, which was acquired by France-based Groupe Lactalis in 2014.
प्र: A can finish a work in 18 days and B can do the same work in half the time taken by A. then, working together, what part of the same work they can finish in a day ? 1381 05b5cc6dde4d2b4197774ea14
5b5cc6dde4d2b4197774ea14- 1Total workfalse
- 2One-fourth workfalse
- 3Half worktrue
- 4Two-third workfalse
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उत्तर : 3. "Half work"
व्याख्या :
Answer: C) Half work Explanation: A can do the work = 18 daysB can do the work = 18/2 = 9 days(A + B)'s 1 day work = 1/18 + 1/9 = 1/6=> In 3 days = 3x1/6 = 1/2 work is completed.
प्र: Atomic mass of first 30 elements? 1378 05b5cc632e4d2b4197774b9d5
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उत्तर :
व्याख्या :
Here I give you the first 30 Atomic elements names and their Atomic masses. Atomic number Element Atomic mass 1 Hydrogen 1 2 Helium 4 3 Lithium 6.94 4 Beryllium 9.01 5 Boron 10.81 6 Carbon 12.01 7 Nitrogen 14.01 8 Oxygen 15.99 9 Fluorine 19.00 10 Neon 20.18 11 Sodium 22.99 12 Magnesium 25.31 13 Aluminium 26.98 14 Silicon 28.09 15 Phosphorus 30.97 16 Sulphur 32.07 17 Chlorine 35.45 18 Argon 39.95 19 Potassium 39.10 20 Calcium 40.08 21 Scandium 44.96 22 Titanium 47.87 23 Vanadium 50.94 24 Chromium 24. 52 25 Manganese 54.94 26 Iron 55.85 27 Cobalt 58.93 28 Nickel 58.69 29 Copper 63.55 30 Zinc 65.41
प्र: Find the value of 1.21x0.91.1x0.11? 1376 05b5cc6cae4d2b4197774e001
5b5cc6cae4d2b4197774e001- 10false
- 21false
- 33true
- 45false
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उत्तर : 3. "3"
व्याख्या :
Answer: C) 3 Explanation: Given 1.21x0.91.1x0.11 = 1.21x100x0.9x101.1x10x0.11x100 = 9 = 3.
प्र: Which is in India wins Pierre L'Enfant International Planning Excellence Award 2017 ? 1376 05b5cc6e5e4d2b4197774ed4c
5b5cc6e5e4d2b4197774ed4c- 1Banglorefalse
- 2Hyderabadfalse
- 3Bhubaneshwartrue
- 4Delhifalse
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उत्तर : 3. "Bhubaneshwar"
व्याख्या :
Answer: C) Bhubaneshwar Explanation: The American Planning Association (APA) has announced this year's international excellence award for the Bhubaneswar smart city project. The award called Pierre L'Enfant International Planning Excellence Award 2017 will be given on May 8 in New York city. This is the first time in the 50 years history of APA's annual award programme that an Indian city has been recognised for its planning efforts.
प्र: O and O' are the center of the two circles with radii 7cm and 9cm respectively. The distance between the centers is 20cm. If PQ be the transverse common tangent to the circles, which cuts OO' at X, what is the length of O'X in cm ? 1376 05b5cc701e4d2b4197774f1a8
5b5cc701e4d2b4197774f1a8- 110false
- 26false
- 335/4false
- 445/4true
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उत्तर : 4. "45/4"
व्याख्या :
Answer: D) 45/4 Explanation: As clear from the figure itself, triangle OQX and triangle O'PX are similar. So, OQ/O'P = OX/O'X => OX = (7/9)xO'X And since, OX + O'X = 20 => (7/9)xO'X + O'X = 20 => O'X = 45/4

