GATE Practice Question and Answer
8Q: Maneela, Raghu and Aravind have some jems with each of them. Five times the number of jems with Raghu equals seven times the number of jems with Maneela while five times the number of jems with Maneela equals seven times the number of jems with Aravind. What is the minimum number of jems that can be there with all three of them put together ? 1990 05b5cc6c7e4d2b4197774de6e
5b5cc6c7e4d2b4197774de6e- 1108false
- 2107false
- 3109true
- 4110false
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Answer : 3. "109"
Explanation :
Answer: C) 109 Explanation: From given data, R : M = 5 : 7 M : A = 5 : 7 R : M : A = 25 : 35 : 49 25 + 35 + 49 = 109
Q: If sum of upstream and downstream speed of a boat is 82 kmph, and the boat travels 105 km. upstream in 3 hr, Find the time taken by boat to cover 126 km downstream. 1990 05b5cc6afe4d2b4197774d278
5b5cc6afe4d2b4197774d278- 12.8 hrsfalse
- 22.7 hrstrue
- 32.6 hrsfalse
- 42.5 hrsfalse
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Answer : 2. "2.7 hrs"
Explanation :
Answer: B) 2.7 hrs Explanation: Let Speed of boat in still water = b Let Speed of still water = w Then we know that, Speed of Upstream = U = boat - water Speed of Downstream = D = boat + water Given, U + D = 82 b - w + b + w = 82 2b = 82 => b = 41 kmph From the given data, 41 - w = 105/3 = 35 w = 6 kmph Now, b + w = 126/t => 41 + 6 = 126/t => t = 126/47 = 2.68 hrs.
Q: Which sentence contains both an adverb and a conjunction? 1990 05b5cc65ee4d2b4197774be4a
5b5cc65ee4d2b4197774be4a- 1Adam crept silently up the stairs, but couldn't slow his heartbeat.true
- 2The storm caused flooding as predicted.false
- 3Sneha was a kind person, but she hated people who spread rumors.false
- 4Do you want the shrimp or the crab?false
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Answer : 1. "Adam crept silently up the stairs, but couldn't slow his heartbeat."
Explanation :
Answer: A) Adam crept silently up the stairs, but couldn't slow his heartbeat. Explanation: The sentence which contains both an adverb and a conjunction is "Adam crept silently up the stairs, but couldn't slow his heartbeat." Here, Adverb - Silently and Conjunction - But.
Q: A store owner is packing books into larger boxes that measure 25 by 42 by 60 inches. If the measurement of each book is 7 by 6 by 5 inches, then how many books can be placed in the box ? 1989 05b5cc74ae4d2b4197774fad6
5b5cc74ae4d2b4197774fad6- 1175false
- 2345false
- 3265false
- 4300true
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Answer : 4. "300"
Explanation :
Answer: D) 300 Explanation: Number of books that can be placed in the larger box is given by Volume of Box / Volume of book.Now, n = 25 x 42 x 60 / 7 x 6 x 5 = 63000 / 210 = 300.Therefore, 300 books can be in that box.
Q: What is the product of a number and its reciprocal? 1989 05b5cc670e4d2b4197774c002
5b5cc670e4d2b4197774c002- 10false
- 21true
- 3-ve of the numberfalse
- 4the number itselffalse
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Answer : 2. "1"
Explanation :
Answer: B) 1 Explanation: The product of a number and its reciprocal is always equals to 1. For Example : Let the number be 4. Now, its reciprocal is 1/4 Hence, required product = 4 x 1/4 = 1. Now, take the number as -15. Then its reciprocal is -1/15 Required product = -15 x -1/15 = 1. Hence, the product of a number and its reciprocal is 1.
Q: 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. 1989 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: Which of the following CANNOT be considered a single phase? 1988 05b5cc65ee4d2b4197774be54
5b5cc65ee4d2b4197774be54- 1a heterogeneous mixturetrue
- 2a pure solidfalse
- 3a pure liquidfalse
- 4a homogeneous mixturefalse
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Answer : 1. "a heterogeneous mixture"
Explanation :
Answer: A) a heterogeneous mixture Explanation: A pure solid and a pure liquid are definitely a single phase because they are so united, or homogeneous. This leads to a homogeneous mixture also being a single phase. Hence, the option that cannot be considered a single phase is A. a heterogeneous mixture.
Q: Rita ? into the cellar. Which of the following words best suitable in the place of '?' 1988 05b5cc6b3e4d2b4197774d41e
5b5cc6b3e4d2b4197774d41e- 1ascendedfalse
- 2rescindedfalse
- 3descendedtrue
- 4intendedfalse
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Answer : 3. "descended"
Explanation :
Answer: C) descended Explanation: Rita descended into the cellar. Descended means went down. As the cellar is in the basement, she must go down. Options and meanings :: descended - went down rescinded - cancelled or annulled ascended - went up intended - meant