IIT JEE Practice Question and Answer
8Q: Who is the first richest person in India? 1558 05b5cc69ae4d2b4197774c787
5b5cc69ae4d2b4197774c787- 1Mukesh Ambanitrue
- 2Azim Premjifalse
- 3Dilip Shangvifalse
- 4Lakshmi Mittalfalse
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Answer : 1. "Mukesh Ambani"
Explanation :
Answer: A) Mukesh Ambani Explanation: According to 2018 January reports, Mukesh Ambani is the first richest person in India being 18th in the world, followed by Azim Premji and S.P. Hinduja in second and third places.
Q: Manisha went to shop with certain amount, with which she can buy 50 Chacobar or 40 Fivestar. She uses 10% amount for petrol and out of the remaining balance, she purchases 20 Fivestar and some Chacobar. Find the number of Chacobar she can buy? 1557 05b5cc6b3e4d2b4197774d441
5b5cc6b3e4d2b4197774d441- 120true
- 224false
- 326false
- 428false
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Answer : 1. "20"
Explanation :
Answer: A) 20 Explanation: Let the total amount be 200 {L.C.M of 40 and 50} Chacobar C.P. = 200/50 = 4 Fivestar C.P = 200/40 = 5 Remaining Money after petrol = [200 - 200×10%] = 180 Remaining money after buying fivestars = [180 - 20×5] = 80 So number of Chacobar she can buy = 80/4 = 20
Q: If a 36 cm thread is used to wrap a book, lengthwise twice and breadth wise once, what is the size of the book ? 1556 05b5cc711e4d2b4197774f3dc
5b5cc711e4d2b4197774f3dc- 1288 sq.cmtrue
- 2188 sq.cmfalse
- 3144 sq.cmfalse
- 4244 sq.cmfalse
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Answer : 1. "288 sq.cm"
Explanation :
Answer: A) 288 sq.cm Explanation: Length of the thread is 36 cms. length wise twice breath wise once then totally thrice.so 36/3 = 12.so length is 12 x 2 = 24 cmsbreath is 12 cmsArea of the book = length x breath = 24 x 12 = 288 sq.cm
Q: At what temperature (in Fahrenheit) pure water freezes? 1556 05b5cc6b9e4d2b4197774d6f8
5b5cc6b9e4d2b4197774d6f8- 10false
- 217false
- 332true
- 439false
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Answer : 3. "32"
Explanation :
Answer: C) 32 Explanation: 32oFWe know that T(°F) = T(°C) × 1.8 + 3232(°F) = 0(°C)
Q: Cold foods should be kept at a temperature of 1555 05b5cc642e4d2b4197774bb2f
5b5cc642e4d2b4197774bb2f- 1< 5 deg Celciustrue
- 2> 18 deg Celciusfalse
- 3> 41 deg Celciusfalse
- 4< -18 deg Celciusfalse
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Answer : 1. "< 5 deg Celcius"
Explanation :
Answer: A) < 5 deg Celcius Explanation: To reduce the risk of bacterial contamination, many foods must be stored in the refrigerator and thus kept below 5 degrees Celsius. These foods are often classified as ‘high-risk foods’ and include – meat, poultry, dairy, seafood, eggs, smallgoods and cooked rice and pasta. This also refers to ready-to-eat foods that have high-risk foods as ingredients and include – casseroles, quiche, pasta salad, pizza, sandwiches and many cakes. By keeping these high-risk foods under 5 degrees Celsius it stops them from entering the ‘danger-zone’ – temperatures between 5 degrees Celsius and 60 degrees Celsius. The danger-zone is the temperature zone which provides bacteria with the perfect environment to rapidly grow and multiply to numbers that cause food poisoning.
Q: Which of the following is not a function of proteins? 1555 05b5cc6b3e4d2b4197774d3e8
5b5cc6b3e4d2b4197774d3e8- 1Build tissues such as bone and musclefalse
- 2Help to fight diseasefalse
- 3Nail formationfalse
- 4Store and transmit Hereditytrue
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Answer : 4. "Store and transmit Heredity"
Explanation :
Answer: D) Store and transmit Heredity Explanation: Protiens can help fight specific diseases, always there to regulate cell processes and build muscle/tissues. Structural proteins also known as Fibrous proteins, are necessary components of your body. They include collagen, keratin and elastin. Collagen forms the connective framework of your muscles, bones, tendons, skin and cartilage. Keratin is the main structural component in hair, nails, teeth and skin. Nucleic acids store and transmit heredity.
Q: 6 : 18 :: 4 : ? 1555 05b5cc6b5e4d2b4197774d520
5b5cc6b5e4d2b4197774d520- 114false
- 26false
- 316false
- 48true
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Answer : 4. "8"
Explanation :
Answer: D) 8 Explanation: Here the given number analogy follows two patterns that, 6 18 --> 6 x 3 4 12 --> 4 x 3 OR 6 18 ----> 6x6/2 = 18 4 8 ----> 4x4/2 = 8 As 12 is not available in the options, 8 is correct answer.
Q: I go in hard. I come out soft. You blow me hard. What am I? 1554 05b5cc632e4d2b4197774b9d6
5b5cc632e4d2b4197774b9d6- Show AnswerHide Answer
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Answer :
Explanation :
Gum.

