GRE Practice Question and Answer
8Q: What is 12 S of the Z? 1280 05b5cc6b5e4d2b4197774d515
5b5cc6b5e4d2b4197774d515- Show AnswerHide Answer
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Answer :
Explanation :
12 S of Z represents 12 Signs of the Zodiac. It is similar to the 1. 52 W in a Y - 52 weeks in a year 2. 3 H in a C - 3 Hands in a Clock 3. 3600 S in an H - 3600 Seconds in an Hour 4. 5 O in the W - 5 Oceans in the World
Q: Statement : The byproducts obtained from animals such as hairs, skins, horns, etc. contain at least 45 per cent food protein. Indian scientists have developed methods to segregate 50 per cent of this protein. They have used an enzyme developed in Russia for destruction of soya-proteins. Conclusions: A. Indian scientists cannot develop enzymes. B. If a suitable method involving less cost is developed then many more food protein would be obtained. 1278 05b5cc6d6e4d2b4197774e6a7
5b5cc6d6e4d2b4197774e6a7- 1Only A followsfalse
- 2Only B followsfalse
- 3Neither A nor B followstrue
- 4Both A & B followsfalse
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Answer : 3. "Neither A nor B follows"
Explanation :
Answer: C) Neither A nor B follows Explanation: There is no indication that Indian scientists are incapable of developing enzymes. There could be any number of reasons why Indian scientists used Russian enzymes. So conclusion A does not follow. In addition, cost is not discussed in the passage at all. There is no mention of a correlation between cost and extraction of proteins. Thus, conclusion B does not follow either.
Q: There are five bags. In the first bag we put some fruits. Each bag the number of fruits is reduced by 1/4. The last bag contains 4. Then the number of fruits in the first bag is ? 1271 05b5cc715e4d2b4197774f477
5b5cc715e4d2b4197774f477- 12596false
- 21024true
- 3256false
- 464false
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Answer : 2. "1024"
Explanation :
Answer: B) 1024 Explanation: Fruits reduced by 1/4.Total no. of bags N = 5Formula to find no. of fruits in 1st bag = 4^nLast Bag = 4 fruits.That means, 4th bag = 4 x 4 = 16 fruits3rd bag = 16 x 4 = 64 fruits2nd bag = 64 x 4 = 256 fruits1st bag = 256 x 4= 1024 fruits.
Q: In the given number series which follows the definite rules then find out the value of (M, N, O, and P) in second number series. 7 18 42 94 204 4 M N O P What value will come in place of P? 1269 05b5cc6b4e4d2b4197774d4e8
5b5cc6b4e4d2b4197774d4e8- 1179false
- 2184false
- 3164false
- 4156true
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Answer : 4. "156"
Explanation :
Answer: D) 156 Explanation: Here the given series 7 18 42 94 204 follows a pattern that, 7 7 ×2+4 = 18 18 ×2+6 = 42 42 ×2+10 = 94 94 ×2+16 = 204 Similarly, 4 4 ×2+4 = 12 12 ×2+6 = 30 30 ×2+10 = 70 70 ×2+16 = 156 Hence, the value of P = 156.
Q: 3/8 as a decimal 1269 05b5cc658e4d2b4197774bda4
5b5cc658e4d2b4197774bda4- 11.375false
- 22.375false
- 30.375true
- 43.75false
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Answer : 3. "0.375"
Explanation :
Answer: C) 0.375 Explanation: Expressing 3/8 as a decimal fraction: We can convert 3/8 into a decimal fraction by just dividing 3 by 8 or making 3 into 8 parts. Then, it is 3/8 = 0.375 as a decimal fraction. Other Method:: 3/8 as a Decimal : In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple. Now to make 8 into 1000, we multiply numerator and denominator with 125 => (3 x 125)/(8 x 125) = 375/1000 = 0.375.
Q: A simple interest earned on certain amount is triple the money when invested for 16 years.what is the interest rate offered ? 1267 05b5cc745e4d2b4197774fa13
5b5cc745e4d2b4197774fa13- 113.33 %false
- 214.25 %false
- 316.98 %false
- 418.75 %true
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Answer : 4. "18.75 %"
Explanation :
Answer: D) 18.75 % Explanation: Given,S.I = 3 Principal Amount=> 3A = A x 16 x R/100By solving, we get => R = 18.75%
Q: The edge of three cubes of metal is 3 m, 4 m and 5 m. They are melted and formed into a single cube. Find the edge of the new cube ? 1263 05b5cc6e7e4d2b4197774eda1
5b5cc6e7e4d2b4197774eda1- 115 mfalse
- 24 mfalse
- 36 mtrue
- 49 mfalse
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Answer : 3. "6 m"
Explanation :
Answer: C) 6 m Explanation: The edge of the new cube is = 33+43+53 = a3 => a = 6 m.
Q: Two trains running in opposite directions cross a pole placed on the platform in 47 seconds and 31 seconds respectively. If they cross each other in 33 seconds, what is the ratio of their speeds? 1253 05b5cc764e4d2b4197774fd85
5b5cc764e4d2b4197774fd85- 11:7true
- 27:1false
- 32:3false
- 43:2false
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Answer : 1. "1:7"
Explanation :
Answer: A) 1:7 Explanation: Let the speed of the trains be x and y respectively length of train1 = 47xlength of train2 = 31yRelative speed= x + yTime taken to cross each other = 33 s=> 47x+31yx+y= 33=> (47x + 31 y) = 33(x + y)=> 14x = 2y=> x/y = 2/14 = 1/7 = 1:7