IIT JEE Practice Question and Answer
8Q: I. a2-7a+12 = 0, II. b2-3b+2 = 0 Solve both the equations to find the values of a and b ? 2765 05b5cc6e3e4d2b4197774eced
5b5cc6e3e4d2b4197774eced- 1if a > btrue
- 2if a < bfalse
- 3if the relationship between a and b cannot be established.false
- 4if a ≤ bfalse
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Answer : 1. "if a > b"
Explanation :
Answer: A) if a > b Explanation: I. (a - 3)(a - 4) = 0 => a = 3, 4 II. (b - 2)(b - 1) = 0 => b = 1, 2 => a > b
Q: One New York publisher has estimated that 50,000 to 60,000 people in the United States want an anthology that includes the complete works of William Shakespeare. And what accounts for this renewed interest in Shakespeare? As scholars point out, his psychological insights into both male and female characters are amazing even today. This paragraph best supports the statement thatA. Shakespeare's characters are more interesting than fictional characters today.B. people even today are interested in Shakespeare's work because of the characters.C. academic scholars are putting together an anthology of Shakespeare's work.D. New Yorkers have a renewed interested in the work of Shakespeare.E. Shakespeare was a psychiatrist as well as a playwright. 2764 05b5cc728e4d2b4197774f6fb
5b5cc728e4d2b4197774f6fb- 1Afalse
- 2Btrue
- 3Cfalse
- 4Dfalse
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Answer : 2. "B"
Explanation :
Answer: B) B Explanation: The last sentence in the paragraph clearly gives support for the idea that the interest in Shakespeare is due to the development of his characters. Choice a is incorrect because the writer never makes this type of comparison. Choice c is wrong because even though scholars are mentioned in the paragraph, there is no indication that the scholars are compiling the anthology. Choice d is wrong because there is no support to show that most New Yorkers are interested in this work. There is no support for choice e either.
Q: Which component of an IED creates an electrical charge? 2763 05b5cc6a2e4d2b4197774cbdc
5b5cc6a2e4d2b4197774cbdc- 1activatorfalse
- 2fusefalse
- 3explosivefalse
- 4power sourcetrue
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Answer : 4. "power source"
Explanation :
Answer: D) power source Explanation: The power source such as a Battery of an IED creates an electrical charge. What are IED's :: An Improvised Explosive Device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mechanism. IEDs are commonly used as roadside bombs.
Q: Choose the pair which shows the same relation of the given pair from the following options ? BRISTLE : BRUSH 2762 05b5cc6eee4d2b4197774ef20
5b5cc6eee4d2b4197774ef20- 1arm : legfalse
- 2key : pianotrue
- 3recline : chairfalse
- 4stage : curtainfalse
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Answer : 2. "key : piano"
Explanation :
Answer: B) key : piano Explanation: A bristle is a part of a brush; a key is a part of a piano.
Q: Sony is one-fifth the age of her mother 15 years ago and Sony’s brother is three-fifth the age of his mother 10 years ago. If the sum of Sony and her brother’s ages is 31 then how old is Sony's mother ? 2759 05b5cc745e4d2b4197774fa04
5b5cc745e4d2b4197774fa04- 140false
- 250true
- 360false
- 470false
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Answer : 2. "50"
Explanation :
Answer: B) 50 Explanation: Sony and her brother's age sum is 31Let Sony's mother's age be 'x'.Now the conditions given for both of their ages related to their mom is1/5(x-15) + 3/5(x-10) = 31x-15 + 3x-30 = 1554x-45 = 1554x = 200x = 50So, Mother's age = 50. Cross verification : 15 years ago age = 35 => Sony age = 710 years ago age = 40 => bro age = 24 Sum = 24 + 7 = 31.
Q: What travels around the world and stays in one spot? 2759 05b5cc64de4d2b4197774bc93
5b5cc64de4d2b4197774bc93- 1Slippersfalse
- 2Walking stickfalse
- 3Stampstrue
- 4None of the abovefalse
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Answer : 3. "Stamps"
Explanation :
Answer: C) Stamps Explanation: Stamps are what travel around the worldstaying in one spot. Slippers and walking stick can also travel around the world but they will not stay at one spot. So they are eliminated.
Q: What is the primary purpose of most constitutions? 2758 05b5cc68ee4d2b4197774c3cb
5b5cc68ee4d2b4197774c3cb- 1to provide a substitute for governmentfalse
- 2to define and limit government powertrue
- 3to give the government absolute powerfalse
- 4to define a moral code for people to followfalse
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Answer : 2. "to define and limit government power"
Explanation :
Answer: B) to define and limit government power Explanation: There are many reasons why a constitution is needed. One of the primary purposes is to define and limit power of the government. It gives the structures for the functioning of the country such as courts and parliament and limits the power. e.g. to imprison without trial for the government.
Q: Which of the following pairs is mismatched? 2758 05b5cc6a8e4d2b4197774ce8b
5b5cc6a8e4d2b4197774ce8b- 1Pila globosa - pearltrue
- 2Kenia lacca - lacfalse
- 3Apis indica - honeyfalse
- 4Bombyx mori - silkfalse
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Answer : 1. "Pila globosa - pearl"
Explanation :
Answer: A) Pila globosa - pearl Explanation: Pinctada vulgaris is a bivalve from which pearl is obtained.