GRE प्रश्न और उत्तर का अभ्यास करें
8प्र: What has no beginning, end or middle? 1928 05b5cc696e4d2b4197774c59e
5b5cc696e4d2b4197774c59e- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A Donut or Doughnut. Anything in the shape of a torus.
प्र: There is sufficient salary to give K for 10 days and L for 15 days. Then how many days will the money last if both has to be given the salary ? 1928 05b5cc715e4d2b4197774f404
5b5cc715e4d2b4197774f404- 16 daystrue
- 212 daysfalse
- 34 daysfalse
- 49 daysfalse
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उत्तर : 1. "6 days"
व्याख्या :
Answer: A) 6 days Explanation: K's 1 day's salary = 1/10 L's 1 day's salary = 1/15 Together their 1 day's salary = 1/10 + 1/15 = 3/30 + 2/30 = 5/30 = 1/6 So the money will be enough for paying them both for 6 days.
प्र: 20 men went to a restaurant. Ninteen of them paid Rs.70 each and the twentieth man paid Rs.90.25 more than the average of all the 20 men. What is the total bill ? 1927 05b5cc73ae4d2b4197774f8b5
5b5cc73ae4d2b4197774f8b5- 1Rs. 1495true
- 2Rs. 548false
- 3Rs. 850false
- 4Rs. 1750false
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उत्तर : 1. "Rs. 1495"
व्याख्या :
Answer: A) Rs. 1495 Explanation: Let the average bill paid by twenty members = 'x' But 19 men paid each = Rs. 70 20th man paid Rs. 90.25 more than the avg bill of 20 = x + 90.25 20x = 19(70) + x + 90.2519x = 1330 + 90.2519x = 1420.25x = 1420.25/19 = Rs. 74.75 But the total bill = 20 x 74.75 = Rs. 1495.
प्र: What is the science of mapmaking called? 1921 05b5cc62ae4d2b4197774b8d7
5b5cc62ae4d2b4197774b8d7- 1Coriographyfalse
- 2Cartographytrue
- 3Photograrnmetryfalse
- 4Mappingfalse
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उत्तर : 2. "Cartography"
व्याख्या :
Answer: B) Cartography Explanation: The art and science of map making is called Cartography.
प्र: Which is the World's highest bridge standing 1850 ft above a gorge opens? 1917 05b5cc774e4d2b41977750057
5b5cc774e4d2b41977750057- 1Sidu Bridgefalse
- 2Millau Via-ductfalse
- 3Beipanjiang Bridgetrue
- 4Puli Bridgefalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 3. "Beipanjiang Bridge"
व्याख्या :
Answer: C) Beipanjiang Bridge Explanation: Duge Beipanjiang Bridge in southwest China, opened to traffic this week and now the highest bridge in the world, some 565 metres (1,854 feet) above the valley below.The bridge stretches across a 1,341-metre (4,400-foot) span. Three years in the making, it's estimated to have cost the Chinese government around 1 billion yuan (or US$144 million).The bridge is going to cut travel times between Liupanshui in the Guizhou province and Xuanwei in the Yunnan province to two hours instead of the current five – as long as you don't mind the heights.The bridge crosses the the Nizhu river, and to give you some idea of the size of the drop down to the water below, it's almost 2 Eiffel Towers or one-and-a-half Empire State Buildings.
प्र: 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 ? 1914 05b5cc764e4d2b4197774fd80
5b5cc764e4d2b4197774fd80- 1100 mtsfalse
- 296 mtsfalse
- 398 mtstrue
- 4120 mtsfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 3. "98 mts"
व्याख्या :
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.
प्र: 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? 1910 05b5cc6ade4d2b4197774d0f9
5b5cc6ade4d2b4197774d0f9- 14320true
- 24694false
- 34957false
- 44871false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "4320"
व्याख्या :
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.
प्र: Fuse Wire is Made of? 1903 05b5cc6b4e4d2b4197774d4f7
5b5cc6b4e4d2b4197774d4f7- 1an alloy of Tin and Leadtrue
- 2Nickelfalse
- 3Copperfalse
- 4an alloy of Nickel and Leadfalse
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 1. "an alloy of Tin and Lead"
व्याख्या :
Answer: A) an alloy of Tin and Lead Explanation: Fuse Wire is Made of an alloy of Tin and Lead. If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

