GRE प्रश्न और उत्तर का अभ्यास करें
8प्र: Population of a colony of mosquitoes is increasing by 20% per day. If the population on Monday was 3000, on which day of that week the population would be 5184 ? 2529 05b5cc73ae4d2b4197774f8f1
5b5cc73ae4d2b4197774f8f1- 1Thursdaytrue
- 2Fridayfalse
- 3Tuesdayfalse
- 4Mondayfalse
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उत्तर : 1. "Thursday"
व्याख्या :
Answer: A) Thursday Explanation: Given monday population = 3000Per day 20% increase in population. Tuesday population = 3000 + 3000x20/100 = 3000 + 600 = 3600 Wednesday population =3600 + 3600x20/100 = 3600 + 720 = 4320 Thursday population = 4320 + 4320x20/100 = 4320 + 864 = 5184 So that day is Thursday.
प्र: Vishal invested 10% more than Trishul. Trishul invested 10% less than Raghu. If the total sum of their investments is Rs. 5780, how much amount did Raghu invest ? 2527 05b5cc75ee4d2b4197774fc9d
5b5cc75ee4d2b4197774fc9d- 1Rs.2010false
- 2Rs.2200false
- 3Rs.2000true
- 4Rs.2100false
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उत्तर : 3. "Rs.2000"
व्याख्या :
Answer: C) Rs.2000 Explanation: Let money invested by Raghu = Rs. xMoney invested by Trishul = 9/10 x = 0.9xMoney invested by Vishal = 9/10x * 110/100 = 0.99xAlso, x+0.9x+0.99x = 5780= x= 5780/2.89 = 2000 Therefore, amount invested by Raghu is Rs. 2000.
प्र: Which is the World's highest bridge standing 1850 ft above a gorge opens? 2526 05b5cc774e4d2b41977750057
5b5cc774e4d2b41977750057- 1Sidu Bridgefalse
- 2Millau Via-ductfalse
- 3Beipanjiang Bridgetrue
- 4Puli Bridgefalse
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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: Can you spot the missing number? 2525 05b5cc615e4d2b4197774b6ec
5b5cc615e4d2b4197774b6ec- 13false
- 26false
- 3Both A & Btrue
- 4None of the abovefalse
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उत्तर : 3. "Both A & B"
व्याख्या :
Answer: C) Both A & B Explanation: The given number puzzle can be soved in two ways. Logic 1 :: Row 1 - 2 x 3 = 6 , 6 x 3 = 18 Row 2 - 4 x 5 = 20 , 20 x 5 = 100 Row 3 - 3 x 7 = 21 , 21 x 7 = 147 Hence, the missing number could be 3. Logic 2 :: Row 1 - 6 x (2+1) = 18 Row 2 - 20 x (4+1) = 100 Row 3 - 21 x (6+1) = 147 Hence, the missing number could be 6. Therefore, 3 or 6 is the right answer.
प्र: Fact 1: All hats have brims.Fact 2: There are black hats and blue hats.Fact 3: Baseball caps are hats. If the first three statements are facts, which of the following statements must also be a fact?I. All caps have brims.II. Some baseball caps are blue.III. Baseball caps have no brims. 2522 05b5cc6fee4d2b4197774f111
5b5cc6fee4d2b4197774f111- 1I onlyfalse
- 2II onlyfalse
- 3I, II, and IIIfalse
- 4None of the statements is a fact.true
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उत्तर : 4. "None of the statements is a fact."
व्याख्या :
Answer: D) None of the statements is a fact. Explanation: All baseball caps have brims, since baseball caps are hats (Fact 3) and all hats have brims (Fact 1). This rules out statement III—but it doesn’t follow that all caps, a category that may include caps that are not baseball caps, have brims (statement I). Statement II cannot be confirmed, either, since it is possible, given the information, that all baseball caps are black.
प्र: A store owner is packing books into larger boxes that measure 25 by 42 by 60 inches. If the measurement of each book is 7 by 6 by 5 inches, then how many books can be placed in the box ? 2512 05b5cc74ae4d2b4197774fad6
5b5cc74ae4d2b4197774fad6- 1175false
- 2345false
- 3265false
- 4300true
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उत्तर : 4. "300"
व्याख्या :
Answer: D) 300 Explanation: Number of books that can be placed in the larger box is given by Volume of Box / Volume of book.Now, n = 25 x 42 x 60 / 7 x 6 x 5 = 63000 / 210 = 300.Therefore, 300 books can be in that box.
प्र: Ammeter : Current :: Odometer : ? 2512 05b5cc771e4d2b4197774ffe4
5b5cc771e4d2b4197774ffe4- 1Blood Pressurefalse
- 2Haemoglobinfalse
- 3pressurefalse
- 4Speedtrue
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उत्तर : 4. "Speed"
व्याख्या :
Answer: D) Speed Explanation: Here Ammeter is used for measuring Current whereas Odometer is used to measure Speed.
प्र: If watches bought at prices ranging from Rs. 200 to Rs. 350 are sold at prices ranging from Rs. 300 to Rs. 425. What is the greatest possible profit that might be made in selling nine watches ? 2508 05b5cc75ce4d2b4197774fc89
5b5cc75ce4d2b4197774fc89- 1Rs. 1800false
- 2Rs. 2000false
- 3Rs. 2025true
- 4Rs. 1750false
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उत्तर : 3. "Rs. 2025"
व्याख्या :
Answer: C) Rs. 2025 Explanation: Profit would be maximum if watches are brought for Rs. 200 and sold for Rs. 425Profit = Rs. (425 - 200) = Rs. 225Profit of 9 watches = Rs. 225 x 9 = Rs.2,025.

