GATE Practice Question and Answer
8Q: With similar triangles the corresponding angles are equal. 1750 05b5cc69ce4d2b4197774c834
5b5cc69ce4d2b4197774c834- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: The given statement about similar triangles is TRUE. Similar Triangles Theorem :: Similar triangles are two triangles with corresponding angles of equal measure, and the ratios of their corresponding sides' lengths are equal.
Q: There are 5 consecutive odd numbers. If the difference between square of the average of first two odd number and the of the average last two odd numbers is 396, what is the smallest odd number? 1750 05b5cc6aee4d2b4197774d165
5b5cc6aee4d2b4197774d165- 129true
- 227false
- 331false
- 433false
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Answer : 1. "29"
Explanation :
Answer: A) 29 Explanation: Let the five consecutive odd numbers be x-4, x-2, x, x+2, x+4 According to the question, Difference between square of the average of first two odd number and the of the average last two odd numbers is 396 i.e, x+3 and x-3 ⇒x + 32 - x - 32 = 396⇒ x2 + 9 + 6x - x2 + 6x - 9 = 396⇒ 12x = 396⇒ x = 33 Hence, the smallest odd number is 33 - 4 = 29.
Q: Doctor : Nurse :: ? : Follower 1749 05b5cc69ae4d2b4197774c77d
5b5cc69ae4d2b4197774c77d- 1Managerfalse
- 2Employerfalse
- 3Workerfalse
- 4Leadertrue
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Answer : 4. "Leader"
Explanation :
Answer: D) Leader Explanation: Here the second one follows the first one. That is a nurse follows a doctor and similarly, a follower follows a leader. Hence, Doctor : Nurse :: Leader : Follower.
Q: Study of fishes is called 1747 05b5cc67be4d2b4197774c1db
5b5cc67be4d2b4197774c1db- 1Amphiologyfalse
- 2Phylumologyfalse
- 3Zoologyfalse
- 4Ichthyologytrue
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Answer : 4. "Ichthyology"
Explanation :
Answer: D) Ichthyology Explanation: Ichthyology is the branch of biology devoted to the study of fish. It is also known as Fish science which includes bony fishes (Osteichthyes), cartilaginous fish (Chondrichthyes), and jawless fish (Agnatha).
Q: The Study of Universe is called 1747 05b5cc6abe4d2b4197774d025
5b5cc6abe4d2b4197774d025- 1Universologyfalse
- 2Cosmetologyfalse
- 3Petologyfalse
- 4Cosmologytrue
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Answer : 4. "Cosmology"
Explanation :
Answer: D) Cosmology Explanation: Cosmology is the scientific study of the large scale properties of the universe as a whole. It endeavors to use the scientific method to understand the origin, evolution and ultimate fate of the entire Universe. Depending on the outcome of the observations, the theories will need to be abandoned, revised or extended to accommodate the data. The prevailing theory about the origin and evolution of our Universe is the so-called Big Bang theory.
Q: Read each part of the sentence to find out if there is any error in it. The error, if any, will be in one part of the sentence. The number of that part is the answer. As much as i admire him for his talent(1) / and endeavor to achieve success(2)/ I cannot forgive him for being so(3)/rude to the not so well to do ones(4) 1746 05b5cc6cae4d2b4197774e0a4
5b5cc6cae4d2b4197774e0a4- 1(1)true
- 2(2)false
- 3(3)false
- 4(4)false
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Answer : 1. "(1)"
Explanation :
Answer: A) (1) Explanation: The error lies in part (1). As the phrase 'as much as' needs to be replaced with 'much as I'. This is because we use 'as much as' for comparing two qualities or things. But here in the given sentence a contrast is given in the latter part of the sentence. So we need a conjunction like 'even though' 'although' etc... 'Much as I' also serves the same purpose.
Q: A jogger running at 9 km/hr along side a railway track is 260 m ahead of the engine of a 140 m long train running at 45 km/hr in the same direction. In how much time will the train pass the jogger ? 1745 05b5cc6e5e4d2b4197774ed29
5b5cc6e5e4d2b4197774ed29- 125 secfalse
- 240 sectrue
- 338 secfalse
- 432 secfalse
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Answer : 2. "40 sec"
Explanation :
Answer: B) 40 sec Explanation: Speed of train relative to jogger = 45 - 9 = 36 km/hr.= 36 x 5/18 = 10 m/sec. Distance to be covered = 260 + 140 = 400 m. Time taken = 400/10 = 40 sec.
Q: The ratio of present ages of X and Y is 4:5. Which of the following can't be the ratio of ages of X and Y, 20 years ago ? 1745 05b5cc73de4d2b4197774f925
5b5cc73de4d2b4197774f925- 12 : 5false
- 28 : 15false
- 39 : 10true
- 43 : 5false
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Answer : 3. "9 : 10"
Explanation :
Answer: C) 9 : 10 Explanation: The ratio of X and Y ages at present is 4:5. Then, the ratio 20 years ago will not be more than the ratio at present. So, from the options 9:10 is not satifying => its ratio is 0.9 which is greater than presnt ratio of 0.8.