GRE Practice Question and Answer
8Q: What is the science of mapmaking called? 2080 05b5cc62ae4d2b4197774b8d7
5b5cc62ae4d2b4197774b8d7- 1Coriographyfalse
- 2Cartographytrue
- 3Photograrnmetryfalse
- 4Mappingfalse
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Answer : 2. "Cartography"
Explanation :
Answer: B) Cartography Explanation: The art and science of map making is called Cartography.
Q: If a student walks at the rate of 4 mts/min from his home, he is 4 minutes late for school, if he walks at the rate of 6 mts/min he reaches half an hour earlier. How far is his school from his home ? 2080 05b5cc764e4d2b4197774fd80
5b5cc764e4d2b4197774fd80- 1100 mtsfalse
- 296 mtsfalse
- 398 mtstrue
- 4120 mtsfalse
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Answer : 3. "98 mts"
Explanation :
Answer: C) 98 mts Explanation: Let the distance between home and school is 'x'.Let actual time to reach be 't'.Thus, x/4 = t + 4 ---- (1)and x/6 = t - 30 -----(2)Solving equation (1) and (2)=> x = 98 mts.
Q: What is the first step in Photosynthesis? 2078 15b5cc6a9e4d2b4197774cf0f
5b5cc6a9e4d2b4197774cf0f- 1Formation of ATPfalse
- 2Joining of 3-carbon atom to form glucosefalse
- 3Ionization of waterfalse
- 4Excitement of an electron of chlorophyll photon of lighttrue
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Answer : 4. "Excitement of an electron of chlorophyll photon of light"
Explanation :
Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.
Q: How many birthdays does the average person have? 2077 05b5cc670e4d2b4197774c05f
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Answer :
Explanation :
Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.
Q: In a certain Business, the profit is 220% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ? 2077 05b5cc767e4d2b4197774fe45
5b5cc767e4d2b4197774fe45- 161%true
- 275%false
- 355%false
- 481%false
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Answer : 1. "61%"
Explanation :
Answer: A) 61% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs.220, S.P. = Rs.320. New C.P. = 125% of Rs. 100 = Rs. 125 New S.P. = Rs.320. Profit = Rs. (320 - 125) = Rs. 195 Required percentage = 195320×100== 60.9 =~ 61%
Q: Find out which pair of words can be filled up in the blanks in the sentence to make the sentence meaningfully complete. The policy on foreign direct investment in multi- brand retail may be _______ in a political impasse, but big retail chains are using India as sourcing base and making an _________ on local businesses. 2075 05b5cc6c5e4d2b4197774dd55
5b5cc6c5e4d2b4197774dd55- 1Caught, impacttrue
- 2Caught, effectfalse
- 3Fetched, affectfalse
- 4Fetching, impactfalse
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Answer : 1. "Caught, impact"
Explanation :
Answer: A) Caught, impact Explanation: Caught - according to the sentence given caught means to become involved in something, often without wanting to. Impasse - means a situation in which further development is impossible.
Q: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 2073 05b5cc73ae4d2b4197774f902
5b5cc73ae4d2b4197774f902- 114.69 cmfalse
- 229.39 cmtrue
- 318.65 cmfalse
- 422.21 cmfalse
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Answer : 2. "29.39 cm"
Explanation :
Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms. As speed is same, area of cross sections should be same. Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12 i.e πR2 = 6πR12 Here R = R and R1 = 12/2 = 6 ⇒R2 = 6×6×6 R = 14.696 => D = X = 14.696 * 2 = 29.3938 cm.
Q: The number of ways in which six boys and six girls can be seated in a row for a photograph so that no two girls sit together is ? 2069 05b5cc6e2e4d2b4197774ec3e
5b5cc6e2e4d2b4197774ec3e- 12(6!)false
- 26! x 7false
- 36! x ⁷P₆true
- 4Nonefalse
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Answer : 3. "6! x ⁷P₆"
Explanation :
Answer: C) 6! x ⁷P₆ Explanation: We can initially arrange the six boys in 6! ways.Having done this, now three are seven places and six girls to be arranged. This can be done in ⁷P₆ ways. Hence required number of ways = 6! x ⁷P₆