GRE Practice Question and Answer
8Q: On BBC World News channel last night they showed an informative program about new innovations in medical imaging, which you would have found interesting. 1443 05b5cc6a3e4d2b4197774cc1a
5b5cc6a3e4d2b4197774cc1a- 1there was an informative program about innovations in medical imaging, a program you would have found interesting.true
- 2they showed an informative program about innovations in medical imaging, which you would have found interesting.false
- 3there was an informative program about new innovations in medical imaging, that you would have found interesting.false
- 4they showed an informative program about new innovations in medical imaging, which you would have found interesting.false
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Answer : 1. "there was an informative program about innovations in medical imaging, a program you would have found interesting."
Explanation :
Answer: A) there was an informative program about innovations in medical imaging, a program you would have found interesting. Explanation: They is incorrect when talking of the television channel. New is redundant. And which must have a clear antecedent. Hence, Only Option A satisfies and clears all the flaws in the given sentence.
Q: There are 15 lines in plane. How many intersections (Maximum) can be made ? 1443 05b5cc73de4d2b4197774f916
5b5cc73de4d2b4197774f916- 155false
- 2105true
- 3215false
- 4148false
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Answer : 2. "105"
Explanation :
Answer: B) 105 Explanation: First line will cut all other 14, similarly second will cut 13, and so onTotal = 14+13+12+11+10+9+8+7+6+5+4+3+2+1 = 105.
Q: Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ? 1442 05b5cc761e4d2b4197774fd2a
5b5cc761e4d2b4197774fd2a- 16 : 8 : 9false
- 28 : 6 : 9false
- 39 : 8 : 6true
- 46 : 5 : 4false
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Answer : 3. "9 : 8 : 6"
Explanation :
Answer: C) 9 : 8 : 6 Explanation: Given the salaries are in the ratio of 4 : 5 : 6 Now the salaries are increased by 50%, 60% and 50% respectively The New ratio of salaries will be 4 x (150/100) : 5 x (160/100) : 6 x (150/100) = 6 : 8 : 9 The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6
Q: An object that has kinetic energy must be 1437 05b5cc67ee4d2b4197774c26f
5b5cc67ee4d2b4197774c26f- 1At an elevated positionfalse
- 2Fallingfalse
- 3At restfalse
- 4Movingtrue
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Answer : 4. "Moving"
Explanation :
Answer: D) Moving Explanation: In physics, we know that the kinetic energy of an object is the energy that it possesses due to its motion. It is defined as the work needed to accelerate a body of a given mass from rest to its stated velocity. Hence, An object that has kinetic energy must be in motion i.e, moving.
Q: P’s son Q is married with R whose sister S is married to T the brother of Q. How S is related to P ? 1436 05b5cc761e4d2b4197774fd2f
5b5cc761e4d2b4197774fd2f- 1Daughter-in-lawtrue
- 2Sisterfalse
- 3Cousinfalse
- 4Sister-in-lawfalse
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Answer : 1. "Daughter-in-law"
Explanation :
Answer: A) Daughter-in-law Explanation: Since T is the brother of QTherefore, P is the father of Tbut S is the wife of T.Hence, S is the daughter-in-law of P.
Q: Arrange the following words in an appropriate order 1. Rainbow 2. Rain 3. Sun 4. Happy 5. Child 1435 05b5cc745e4d2b4197774fa59
5b5cc745e4d2b4197774fa59- 14, 2, 3, 5, 1false
- 24, 5, 1, 2, 3false
- 32, 1, 4, 5, 3false
- 42, 3, 1, 5, 4true
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Answer : 4. "2, 3, 1, 5, 4"
Explanation :
Answer: D) 2, 3, 1, 5, 4 Explanation: Firstly Rain falls and then Sun comes and Rainbow forms. After that Child sees the rainbow and feels Happy.
Q: If y/(x - z) = (y + x)/z = x/y then find z : y : x ? 1434 05b5cc761e4d2b4197774fd4e
5b5cc761e4d2b4197774fd4e- 11:2:3false
- 23:2:4true
- 34:3:2false
- 42:3:4false
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Answer : 2. "3:2:4"
Explanation :
Answer: B) 3:2:4 Explanation: Given, y/(x - z) = (y + x)/z = x/yyz = xy + x2 - yz - xz ....(1)Also xy = yx-z ⇒x2 -xz = y2 ....(2)Using (1) and (2), we get yz = xy - yz + y22yz = xy + y22z = x + y Only option (B) satisfies the equation.
Q: The number of ways in which six boys and six girls can be seated in a row for a photograph so that no two girls sit together is ? 1431 05b5cc6e2e4d2b4197774ec3e
5b5cc6e2e4d2b4197774ec3e- 12(6!)false
- 26! x 7false
- 36! x ⁷P₆true
- 4Nonefalse
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Answer : 3. "6! x ⁷P₆"
Explanation :
Answer: C) 6! x ⁷P₆ Explanation: We can initially arrange the six boys in 6! ways.Having done this, now three are seven places and six girls to be arranged. This can be done in ⁷P₆ ways. Hence required number of ways = 6! x ⁷P₆