IIT JEE Practice Question and Answer
8Q: I am a 5 letter word. I am normally below you. If you remove my 1st letter, you'll find me above you. If you remove my 1st & 2nd letters, you can't see me. What am I? 1919 05b5cc69ae4d2b4197774c79c
5b5cc69ae4d2b4197774c79c- Show AnswerHide Answer
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Answer :
Explanation :
Firstly, I focussed on "If you remove my 1st & 2nd letters, you can't see me". The first thing that comes to mind which we can’t see is the "AIR". So now, what 4 letter words can be formed ending with "AIR"? Think of all the words from A to Z, considering which one lies above you. That is how we get to "HAIR". Now, which 5 letter word can be formed ending with "HAIR"? Starting with A to Z, we reach "CHAIR" and also, it lies below us. And the required answer is "CHAIR".
Q: Madhu got 32% of the maximum marks in a Bank examination and failed by 8 marks. However, Kumar who took the same examination got 42% of the total marks and got 16 marks more than the cut-off marks. What was the cut-off marks in the examination ? 1918 05b5cc6d1e4d2b4197774e3d4
5b5cc6d1e4d2b4197774e3d4- 176.8false
- 286.8false
- 378.8false
- 484.8true
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Answer : 4. "84.8"
Explanation :
Answer: D) 84.8 Explanation: Let 'M' be the maximum marks in the examination. Therefore, Madhu got 32% of M = 32M/100 = 0.32MAnd Kumar got 42% of M = 42M/100 = 0.42M.In terms of the maximum marks Kumar got 0.42M - 0.32M = 0.1M more than Madhu. ---- (1) The problem however, states that Kumar got 16 marks more than the cut-off mark and Madhu got 8 marks less than the cut-off mark. Therefore, Kumar has got 16 + 8 = 24 marks more than Madhu. ---- (2) Now, Equating (1) and (2), we get0.1M = 24 => M = 24/0.1 = 240'M' is the maximum mark and is equal to 240 marks.We know that Madhu got 32% of the maximum marks.Therefore, Madhu got 32 x 240/100 = 76.8 marks.We also know that Madhu got 8 marks less than the cut-off marks. Therefore, the cut-off marks will be 8 marks more than what Madhu got = 76.8 + 8 = 84.8.
Q: At what temperature do the Fahrenheit and celcius scales give the same reading? 1918 05b5cc7b6e4d2b4197775090a
5b5cc7b6e4d2b4197775090a- 1212 degreesfalse
- 232 degreeesfalse
- 3-40 degreeestrue
- 40 degreeesfalse
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Answer : 3. "-40 degreees"
Explanation :
Answer: C) -40 degreees Explanation: We want the temperature when F=C. We know that, F = C x 95 + 32 So substituting C For F, we have C = -40o Therefore, C = -40. Thus when C = -40, we have C = F
Q: What are the two types of pure substances? 1917 05b5cc69de4d2b4197774c8a1
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Answer :
Explanation :
An atom is the smallest particle of a substance. Chemical substances are divided into two major groups. They are 1. Pure Substances (and) 2. Mixtures. There are two types of pure substances that are Elements and Compounds. Elements : An element is a substance that is made up of only one kind of atoms and cannot be broken down into simpler substances by chemical means. Metals and Non- metals come under elements. Examples of elements are Iron, Silver, Gold, Mercury etc. Compounds : A Compound is a substance that is formed when two or more elements combine chemically. Examples of compounds are Water, Carbon dioxide, methane, vinegar etc. Mixtures : A Mixture is formed when two or more substances mixed together but not chemically combined. Example: Air.
Q: What was true about the progressive movement? 1917 05b5cc611e4d2b4197774b665
5b5cc611e4d2b4197774b665- 1Women left traditional roles to become active in reform during the Progressive Movement.true
- 2Members were essentially ruralfalse
- 3progressives held no issues in common with populist movementfalse
- 4All of the abovefalse
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Answer : 1. "Women left traditional roles to become active in reform during the Progressive Movement."
Explanation :
Answer: A) Women left traditional roles to become active in reform during the Progressive Movement. Explanation: The Progressive Era took place in the US from the 1890s to the1920s. The movement was an effort to reform the government andeliminate the corruption within it. Social activists also wanted toreform the educational system, the insurance industry, thechurches, and many other things they felt were out of control, andnot working in the best interests of the citizens.
Q: Which of the following is a Decomposition Reaction? 1917 05b5cc6a9e4d2b4197774ceca
5b5cc6a9e4d2b4197774ceca- 12HgO ----> 2Hg + O2false
- 26NaNO3 ----> 6NaNO2 + 3O2false
- 3ZnCO3 ----> ZnO + CO2false
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation: All the given reactions are Decomposition reactions. Decomposition reaction is a reaction in which only one reactant is splitted into two or more products.
Q: " World Water Day " is celebrated on _____ 1916 05b5cc70be4d2b4197774f320
5b5cc70be4d2b4197774f320- 123 rd Marchfalse
- 224 th Marchfalse
- 322 nd Marchtrue
- 421 st Marchfalse
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Answer : 3. "22 nd March"
Explanation :
Answer: C) 22 nd March Explanation:
Q: Consumer protection laws are meant to 1916 05b5cc688e4d2b4197774c345
5b5cc688e4d2b4197774c345- Show AnswerHide Answer
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Answer :
Explanation :
Protect the consumer from the seller who cheat to sell his product. The FTC’s Bureau of Consumer Protection stops unfair, deceptive and fraudulent business practices by collecting complaints and conducting investigations, suing companies and people that break the law, developing rules to maintain a fair marketplace, and educating consumers and businesses about their rights and responsibilities.

