GRE Practice Question and Answer
8Q: With an average speed of 40 km/hr, a train reaches its destination in time. If it goes with an average speed of 35 km/hr, it is late by 15 minutes. Find the length of the total journey? 1994 05b5cc662e4d2b4197774be9c
5b5cc662e4d2b4197774be9c- 170 kmstrue
- 260 kmsfalse
- 345 kmsfalse
- 430 kmsfalse
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Answer : 1. "70 kms"
Explanation :
Answer: A) 70 kms Explanation: Let the time taken by train be 't' hrs. Then, 40t = 35t + 1560 40t = 35t + 35/4 t = 7/4 hrs Therefore, Required length of the total journey d = s x t = 40 x 7/4 = 70 kms.
Q: The average of the ages of Sushanth, Krish and Rishi is 43 years and the average of the ages of Sushanth, Rishi and Rohit is 49 years. If Rohit is 54 years old, what is Krish's age ? 1993 05b5cc73de4d2b4197774f948
5b5cc73de4d2b4197774f948- 134 yearsfalse
- 226 yearsfalse
- 324 yearsfalse
- 436 yearstrue
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Answer : 4. "36 years"
Explanation :
Answer: D) 36 years Explanation: Let present ages of Sushanth = w, Krish = x, Rishi = y and Rohit = z , thenw + x + y = 43 x 3 = 129 ---(i) andw + y + z = 49 x 3 = 147 ---(ii)Subtracting (i) from (ii), (w+y+z) - (w+x+y) = 147 - 129 , z - x = 18 ---(iii)Given Rohit's age=z=54, so from (iii), x = 54 - 18 = 36.Therefore, Krish age is 36 years.
Q: An express train takes 4 seconds to enter tunnel which is 1 km long. If it is traveling at 108 km an hour, how long will it take to pass completely through the tunnel ? 1989 05b5cc73ae4d2b4197774f8ec
5b5cc73ae4d2b4197774f8ec- 133 secfalse
- 237.33 sectrue
- 336.43 secfalse
- 432 secfalse
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Answer : 2. "37.33 sec"
Explanation :
Answer: B) 37.33 sec Explanation: Speed = 108 km/hrenter a tunnel,, means that the train covers a distance equal to its own lengthso (108 x 5/18) = x/4 where x= length of trainhence x = 120 mtrsto pass completely train has to travel a distance = (x + tunnel length) that is 1120 mtrs.so (1120/t) = (108x5/18)t = 37.33 sec
Q: Whale : Mammal :: Rat : ? 1989 05b5cc771e4d2b4197774ffdf
5b5cc771e4d2b4197774ffdf- 1Rodenttrue
- 2Mammalfalse
- 3Amphibianfalse
- 4Reptilefalse
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Answer : 1. "Rodent"
Explanation :
Answer: A) Rodent Explanation: Whale belongs to Mammal category whereas Rat belongs to Rodent.
Q: By investing Rs. 1620 in 8% stock, Michael earns Rs. 135. The stock is then quoted at ? 1989 05b5cc723e4d2b4197774f686
5b5cc723e4d2b4197774f686- 1Rs. 145false
- 2Rs. 245.1false
- 3Rs. 96true
- 4Rs. 75false
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Answer : 3. "Rs. 96"
Explanation :
Answer: C) Rs. 96 Explanation: Michel earns Rs. 135 by investing Rs. 1620To earn Rs. 8 how much he have to invest...? = (8 x 1620)/135 = Rs. 96
Q: which is a best way to measure Ground Distance? 1988 05b5cc6b2e4d2b4197774d373
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Answer :
Explanation :
Pace Count is a way to measure to Ground Distance. Pace Count is nothing but regular single natural step of about 30 inches long.
Q: Light travels fastest in 1988 05b5cc672e4d2b4197774c09b
5b5cc672e4d2b4197774c09b- 1Airtrue
- 2Waterfalse
- 3Glassfalse
- 4Diamondfalse
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Answer : 1. "Air"
Explanation :
Answer: A) Air Explanation: Light travels fastest in Vacuum. The fastest thing in the whole universe is the speed of light in a vacuum like outer space. It is about 2.99 x 108 m/s.
Q: The more you take, the more you leave behind. What is that? 1987 05b5cc63de4d2b4197774bae3
5b5cc63de4d2b4197774bae3- 1Picturesfalse
- 2Holefalse
- 3Clothesfalse
- 4Footstepstrue
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Answer : 4. "Footsteps"
Explanation :
Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.

