GRE Practice Question and Answer

Q: A student can divide her books into groups of 5, 9 and 13. what is the smallest possible number of the books ? 2262 0

  • 1
    487
    Correct
    Wrong
  • 2
    585
    Correct
    Wrong
  • 3
    635
    Correct
    Wrong
  • 4
    705
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "585"
Explanation :

Answer: B) 585 Explanation: The smallest possible number of books = L.C.M of 5, 9 and 13.Therefore, L.C.M of 5,9 and 13 is = 5 x 9 x 13 = 585.

Q: A clock is started at 11 a.m. By 600 seconds past 6 p.m, the hour hand has turned through ? 2252 0

  • 1
    155 degrees
    Correct
    Wrong
  • 2
    175 degrees
    Correct
    Wrong
  • 3
    205 degrees
    Correct
    Wrong
  • 4
    215 degrees
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 4. "215 degrees"
Explanation :

Answer: D) 215 degrees Explanation: The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.

Q: If log72 = m, then log4928 is equal to ? 2250 0

  • 1
    1/(1+2m)
    Correct
    Wrong
  • 2
    (1+2m)/2
    Correct
    Wrong
  • 3
    2m/(2m+1)
    Correct
    Wrong
  • 4
    (2m+1)/2m
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 2. "(1+2m)/2"
Explanation :

Answer: B) (1+2m)/2 Explanation: log4928 = 12log77×4   = 12+122log72= 12+log72= 12 + m= 1+2m2.

Q: A trader mixes 36 kg of rice at Rs. 20 per kg with 14 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is: 2244 0

  • 1
    25%
    Correct
    Wrong
  • 2
    21.14%
    Correct
    Wrong
  • 3
    22.54%
    Correct
    Wrong
  • 4
    27.32%
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 3. "22.54%"
Explanation :

Answer: C) 22.54% Explanation: C.P. of 50 kg rice = Rs. (36 x 20 + 14 x 36) = Rs. (720 + 504) = Rs.1224.   S.P. of 56 kg rice = Rs. (50 x 30) = Rs.1500. Profit = 1500 - 1224 = Rs.276    Profit % = ProfitC.P×100  = 2761224×100 = 22.54%.

Q: Planet : Orbit :: Projectile : ? 2243 0

  • 1
    Path
    Correct
    Wrong
  • 2
    Milky way
    Correct
    Wrong
  • 3
    Track
    Correct
    Wrong
  • 4
    Trajectory
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 4. "Trajectory"
Explanation :

Answer: D) Trajectory Explanation: The path traced by planet is called Orbit. Similarly, the path traced by projectile is called Trajectory.   Hence, Planet : Orbit : : Projectile : Trajectory.

Q: One paper is equally folded 35 times, then what is the new thickness of the paper ? 2238 0

  • 1
    T(2^50)
    Correct
    Wrong
  • 2
    50T
    Correct
    Wrong
  • 3
    2 x 50 T
    Correct
    Wrong
  • 4
    T/50
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "T(2^50)"
Explanation :

Answer: A) T(2^50) Explanation: Let initial thickness of the paper be 'T'after first fold it will be '2T' = 21Tafter second fold it will be '4T' = 22T after 50th fold it will be T x (250T)

Q: A train for Fathehpur leaves for every 2 hrs 30 min from Agra station. An announcement was made that train left 37 mins ago and next train comes at 17:00hrs. At what time was the announcement made ? 2234 0

  • 1
    15:07 hrs
    Correct
    Wrong
  • 2
    15:20 hrs
    Correct
    Wrong
  • 3
    15:05 hrs
    Correct
    Wrong
  • 4
    15:00 hrs
    Correct
    Wrong
  • Show Answer
  • Workspace

Answer : 1. "15:07 hrs"
Explanation :

Answer: A) 15:07 hrs Explanation: Next train comes at 17:00 hrs.So, last train will be = 17:00hrs - 2:30hrs= 14:30hrsAnnouncement made after 37 min of the last train.S0, 14:30hrs + 00:37 min= 15:07 hrs.

  • Show Answer
  • Workspace

Answer : 3. "None follows"
Explanation :

Answer: C) None follows Explanation:

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully

  Report Error

Please Enter Message
Error Reported Successfully