IIT JEE Practice Question and Answer
8Q: Fact 1: All hats have brims.Fact 2: There are black hats and blue hats.Fact 3: Baseball caps are hats. If the first three statements are facts, which of the following statements must also be a fact?I. All caps have brims.II. Some baseball caps are blue.III. Baseball caps have no brims. 2188 05b5cc6fee4d2b4197774f111
5b5cc6fee4d2b4197774f111- 1I onlyfalse
- 2II onlyfalse
- 3I, II, and IIIfalse
- 4None of the statements is a fact.true
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Answer : 4. "None of the statements is a fact."
Explanation :
Answer: D) None of the statements is a fact. Explanation: All baseball caps have brims, since baseball caps are hats (Fact 3) and all hats have brims (Fact 1). This rules out statement III—but it doesn’t follow that all caps, a category that may include caps that are not baseball caps, have brims (statement I). Statement II cannot be confirmed, either, since it is possible, given the information, that all baseball caps are black.
Q: Leakage of which of the following gases caused the Bhopal gas tragedy ? 2188 05b5cc70be4d2b4197774f325
5b5cc70be4d2b4197774f325- 1Carbon monoxidefalse
- 2Methyl isocyanatetrue
- 3Nitrous oxidefalse
- 4Hydrogen sulphidefalse
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Answer : 2. "Methyl isocyanate"
Explanation :
Answer: B) Methyl isocyanate Explanation:
Q: Galileo was an Italian Astronomer who 2188 05b5cc6b8e4d2b4197774d670
5b5cc6b8e4d2b4197774d670- 1Discovered 4 satellites of Marsfalse
- 2Developed the Telescopefalse
- 3Discovered that the movement of pendulum produces a regular time measurementfalse
- 4Both B & Ctrue
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Answer : 4. "Both B & C"
Explanation :
Answer: D) Both B & C Explanation: Galileo Galilei (1564-1642) was an Italian Astronomer who 1) Discovered 4 satellites of Jupiter 2) Developed Telescope 3) Discovered that the movement of pendulum produces a regular time measurement He is Physicist, Mathematician, inventor, and philosopher Too.
Q: Rohith Agarwal has three children--- Lila, Visal and Avinash. Avinash married Monika, the eldest daughter of Mr. and Mrs. Roy. The Roys married their youngest daughter to the eldest son of Mr. and Mrs. Sharma, and they had two children named Amit and Shashi. The Roys have two more children, Roshan and Vandana, Both elder to Veena. Sanketh and Yashwanth are sons of Avinash and Monika. Rashmi is the daughter of Amit. 1) How is Veena related to Rashmi ? (a)Aunt (b)Niece (c)Sister (d)Grand mother 2) How is Vishal related to Vandana ? (a)Brother (b)Brother-in-law (c)Cousin (d)Nephew 3) What is the surname of Yashwanth ? (a)Sharma (b)Roy (c)Agarwal (d)None 2188 05b5cc758e4d2b4197774fbe4
5b5cc758e4d2b4197774fbe4- Show AnswerHide Answer
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Answer :
Explanation :
Answer 1) dRashmi is the daughter of Amit who is son of Veena.Therefore, Veena is Grand mother of Rashmi. Answer 2) bVandana's sister is Vishal's brother's wife.Therfore, Vishal is Vandana's Brother-in-law. Answer 3) cYashwanth is son of Avinash who is the son of Rohit Agarwal.Therefore, surname of Yashwanth is Agarwal.
Q: The missing number in the Series 114, 131, 165, 216, ?, 369 2187 05b5cc6b3e4d2b4197774d3fd
5b5cc6b3e4d2b4197774d3fd- 1314false
- 2304false
- 3294false
- 4284true
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Answer : 4. "284"
Explanation :
Answer: D) 284 Explanation: 114 131 165 216 ? 369 +17 +34 +51 +68 +85 => The missing number in the given Number series = 216 + 68 = 284.
Q: Who wrote the first history book? 2186 05b5cc69de4d2b4197774c91e
5b5cc69de4d2b4197774c91e- 1Herodotustrue
- 2Euclidfalse
- 3Julius Caesarfalse
- 4Aristotlefalse
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Answer : 1. "Herodotus"
Explanation :
Answer: A) Herodotus Explanation: Herodotus, a Greek author written the first history book in 5th century B.C.
Q: Which is better investment : 11% stock at 143 (or) 9 3/4% stock at 117 ? 2186 05b5cc71be4d2b4197774f53f
5b5cc71be4d2b4197774f53f- 1Both are equally goodfalse
- 29 3/4% stock at 117true
- 3Cannot be compared, as the total amount of investment is not givenfalse
- 411% stock at 143false
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Answer : 2. "9 3/4% stock at 117"
Explanation :
Answer: B) 9 3/4% stock at 117 Explanation: Let investment in each case be Rs. (143 x 117). Income in 1st case = Rs.11143 x 143 x 117 = Rs. 1287.Income in 2nd case = Rs.394×117 x 143 x 117= Rs. 1394.25 Clearly, 9 3/4% stock at 117 is better.
Q: What should come next in the following number series? 9 8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1 7 6 5 4 3 2 1 2186 05b5cc7f2e4d2b41977751ea7
5b5cc7f2e4d2b41977751ea7- 19false
- 28false
- 37false
- 46true
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Answer : 4. "6"
Explanation :
Answer: D) 6 Explanation: Here the series is: 987654321, 87654321, 7654321, 65...