GRE Practice Question and Answer
8Q: The letters of the word PROMISE are to be arranged so that three vowels should not come together. Find the number of ways of arrangements? 2123 05b5cc6ade4d2b4197774d0f9
5b5cc6ade4d2b4197774d0f9- 14320true
- 24694false
- 34957false
- 44871false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "4320"
Explanation :
Answer: A) 4320 Explanation: Given Word is PROMISE. Number of letters in the word PROMISE = 7 Number of ways 7 letters can be arranged = 7! ways Number of Vowels in word PROMISE = 3 (O, I, E) Number of ways the vowels can be arranged that 3 Vowels come together = 5! x 3! ways Now, the number of ways of arrangements so that three vowels should not come together = 7! - (5! x 3!) ways = 5040 - 720 = 4320.
Q: Which number replaces 'x' in the below figure ? 2120 05b5cc774e4d2b41977750052
5b5cc774e4d2b41977750052- 12false
- 29true
- 311false
- 412false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 2. "9"
Explanation :
Answer: B) 9 Explanation: Here in 2nd column if you add the individual digits we get 3 + 7 + 0 =10 , 2 + 2 + 4 = 8 , 7 + 3 + 0 = 10 7 10 3 --> 7+3 =10 6 8 2 --> 6+2 =8 x 10 1 --> x+1 =10 Here we can observe that by adding 1st and 3rd column elements we get 2nd column elements --> x = 9
Q: If N is the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. What is the sum of the digits of N ? 2119 05b5cc731e4d2b4197774f7fb
5b5cc731e4d2b4197774f7fb- 16false
- 28false
- 34true
- 49false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "4"
Explanation :
Answer: C) 4 Explanation: N = H.C.F. of (4665 - 1305), (6905 - 4665) and (6905 - 1305) = H.C.F. of 3360, 2240 and 5600 = 1120. Sum of digits in N = ( 1 + 1 + 2 + 0 ) = 4
Q: A number is increased by 20% and then decreased by 20%, the final value of the number is ? 2116 05b5cc75ce4d2b4197774fc39
5b5cc75ce4d2b4197774fc39- 1increase by 2%false
- 2decrease by 3%false
- 3decrease by 4%true
- 4increase by 5%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 3. "decrease by 4%"
Explanation :
Answer: C) decrease by 4% Explanation: Here, x = 20 and y = - 20Therefore, the net % change in value=x + y + xy100 %= 20 + -20 + 20 × -20100% or - 4% Since the sign is negative, there is a decrease in value by 4%.
Q: What is the smallest number by which 2880 must be divided in order to make it into a perfect square ? 2116 05b5cc74fe4d2b4197774fb0d
5b5cc74fe4d2b4197774fb0d- 12false
- 23false
- 34false
- 45true
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 4. "5"
Explanation :
Answer: D) 5 Explanation: By trial and error method, we get2880/3 = 960 is not a perfect square2880/4 = 720 is not a perfect square2880/5 = 576 which is perfect square of 24Hence, 5 is the least number by which 2880 must be divided in order to make it into a perfect square.
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
19 C in a CB means 19 Coins in a Carrom Board. We have 9 white coins, 9 black coins and one red coin in a carrom board.
Q: Voiceless it cries, wingless flutters, toothless bites, mouth-less mutters. What is it? 2112 05b5cc619e4d2b4197774b74c
5b5cc619e4d2b4197774b74c- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer :
Explanation :
It is The Wind which cries without a voice, flutters without wings, bites toothless and mutters mouthless.
Q: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 2111 05b5cc74fe4d2b4197774fb12
5b5cc74fe4d2b4197774fb12- 125%true
- 230%false
- 317%false
- 419%false
- Show AnswerHide Answer
- Workspace
- SingleChoice
Answer : 1. "25%"
Explanation :
Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.

