GRE Practice Question and Answer

Q: The average age of 80 boys in a class is 15. The average age of group of 15 boys in the class is 16 and the average of another 25 boys in the class is 14. What is the average age of the remaining boys in the class ? 1415 0

  • 1
    12.24 yrs
    Correct
    Wrong
  • 2
    13.25 yrs
    Correct
    Wrong
  • 3
    16 yrs
    Correct
    Wrong
  • 4
    15.25 yrs
    Correct
    Wrong
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Answer : 4. "15.25 yrs"
Explanation :

Answer: D) 15.25 yrs Explanation: Total ages of 80 boys = 15 x 80 = 1200 yrs.Total age of 16 boys = 15 x 16 = 240 yrsTotal age of 25 boys = 14 x 25 = 350 yrs.Average age of remaining boys = 1200 - (240+350) / 80 - (25+15) = 610/41 = 15.25 yrs.

Q: The more you take, the more you leave behind. What is that? 1411 0

  • 1
    Pictures
    Correct
    Wrong
  • 2
    Hole
    Correct
    Wrong
  • 3
    Clothes
    Correct
    Wrong
  • 4
    Footsteps
    Correct
    Wrong
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Answer : 4. "Footsteps"
Explanation :

Answer: D) Footsteps Explanation: Yes, footsteps are what we take more, the more we leave behind.

Q: What steps do you follow to study a problem before making a decision ? 1411 0

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Answer :
Explanation :

The interviewer wants to know that you don't just jump into a solution without knowing the problem in detail. You want to study the problem by determining the cause of the problem, what the problem is, and what the possible solutions are. You then decide on a solution.Following steps for problem-solving and decision-making can be very helpful.- Define the problem to be solved and decision to be made.- Gather the necessary information. - List all possible choices. - Consider possible outcomes for each choice. - Check out how you feel about each of the choices. - Relate the choices to your values and priorities. - From the possible alternatives, choose one. - Commit yourself to your chosen decision and disregard the others. Concentrate your energies   in one direction. Once we made our decision, we must focus all our work on that itself.- Take steps to turn your decision into positive action. - Evaluate your progress from time to time. Change your decision if necessary.

Q: Rajitha invested 25% more than Santhosh. Santhosh invested 30% less than Raju, who invested Rs. 6,000. What is the ratio of the amount that Rajitha invested to the total amount invested by all of them together ? 1408 0

  • 1
    25 : 114
    Correct
    Wrong
  • 2
    35 : 103
    Correct
    Wrong
  • 3
    15 : 108
    Correct
    Wrong
  • 4
    41 : 94
    Correct
    Wrong
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Answer : 2. "35 : 103"
Explanation :

Answer: B) 35 : 103 Explanation: Santhosh's investment = 6000 x 70/100 = Rs.4200Rajitha's investment = 4200 x 5/4 = Rs.5250Therefore, total amount invested = 6000 + 4200 + 5250 = Rs.15450.Required ratio = 5250 : 15450 = 35 : 103.

Q: What has a head and a tail but nobody? 1402 0

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Answer :
Explanation :

A Coin has a Head and tail but no body. Since the two sides of coin are called as heads and tails.

Q: Who makes it has no need of it. What is it? 1402 0

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Answer :
Explanation :

A Coffin.

Q: How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed ? 1402 0

  • 1
    5040
    Correct
    Wrong
  • 2
    2525
    Correct
    Wrong
  • 3
    2052
    Correct
    Wrong
  • 4
    4521
    Correct
    Wrong
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Answer : 1. "5040"
Explanation :

Answer: A) 5040 Explanation: The Word LOGARITHMS  contains 10 letters. To find how many 4 letter words we can form from that = P410 =10x9x8x7 = 5040.

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Answer : 4. "81.5"
Explanation :

Answer: D) 81.5 Explanation: Let the number of students in classes A, B and C be P, Q and R respectively.Then, total score of A = 83P, total score of B = 76Q, total score of C = 85R.Also given that,(83P + 76Q) / (P + Q) = 79=>4P = 3Q.(76Q + 85R)/(Q + R) = 81=>4R = 5Q,=>Q = 4P/3 and R = 5P/3Therefore, average score of A, B, C = ( 83P + 76Q + 85R ) / (P + Q + R) = 978/12 = 81.5

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