GRE प्रश्न और उत्तर का अभ्यास करें
8प्र: If y/(x - z) = (y + x)/z = x/y then find z : y : x ? 2352 05b5cc761e4d2b4197774fd4e
5b5cc761e4d2b4197774fd4e- 11:2:3false
- 23:2:4true
- 34:3:2false
- 42:3:4false
- उत्तर देखेंउत्तर छिपाएं
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उत्तर : 2. "3:2:4"
व्याख्या :
Answer: B) 3:2:4 Explanation: Given, y/(x - z) = (y + x)/z = x/yyz = xy + x2 - yz - xz ....(1)Also xy = yx-z ⇒x2 -xz = y2 ....(2)Using (1) and (2), we get yz = xy - yz + y22yz = xy + y22z = x + y Only option (B) satisfies the equation.
प्र: On her deathbed, a grand mother called upon his three grand sons and told them to distribute all her assets worth Rs. 52,500 in the ratio of 1/35 : 1/21 : 1/15 amongst themselves. Find the smallest share amongst the three portions ? 2352 05b5cc761e4d2b4197774fd3f
5b5cc761e4d2b4197774fd3f- 1Rs. 5422false
- 2Rs. 10,500true
- 3Rs. 12,800false
- 4Rs. 15,000false
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उत्तर : 2. "Rs. 10,500"
व्याख्या :
Answer: B) Rs. 10,500 Explanation: The ratio of distribution should be: 21 x 15 : 15 x 35 : 35 x 21= 315 : 525 : 735 = 3 : 5 : 7The smallest share will be of worth: 3/15 x 52,500 = Rs. 10,500
प्र: Who makes it has no need of it. What is it? 2346 05b5cc655e4d2b4197774bd49
5b5cc655e4d2b4197774bd49- उत्तर देखेंउत्तर छिपाएं
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उत्तर :
व्याख्या :
A Coffin.
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 ? 2345 05b5cc715e4d2b4197774f404
5b5cc715e4d2b4197774f404- 16 daystrue
- 212 daysfalse
- 34 daysfalse
- 49 daysfalse
- उत्तर देखेंउत्तर छिपाएं
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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: Twelve percent of Kalyan's monthly salary is equal to the sixteen per cent of Nandu's monthly salary. Sarnesh's monthly salary is half that of Nandu's monthly salary. If sarnesh's annual salary is Rs. 1.08 lacs, What is Kalyan's monthly salary ? 2344 05b5cc72ce4d2b4197774f746
5b5cc72ce4d2b4197774f746- 115,000false
- 236,000false
- 324,000true
- 412,500false
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उत्तर : 3. "24,000"
व्याख्या :
Answer: C) 24,000 Explanation: Let K = Kalyan's monthly salaryN = Nandu's monthly salaryS = Sarnesh's monthly salary.Then from given data, 12% of K = 16% of NS = N/2 => N = 2SK = 16/12 x N = 16/12 x 2S= 16/6 x 1.08/12 = 16/6 x 0.09 = 0.24 lacs = 24,000
प्र: 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 ? 2344 05b5cc6e2e4d2b4197774ec3e
5b5cc6e2e4d2b4197774ec3e- 12(6!)false
- 26! x 7false
- 36! x ⁷P₆true
- 4Nonefalse
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उत्तर : 3. "6! x ⁷P₆"
व्याख्या :
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
प्र: In oceania, most towns began as 2344 05b5cc60ae4d2b4197774b582
5b5cc60ae4d2b4197774b582- 1Colonial portstrue
- 2plantationsfalse
- 3tribal ritual centersfalse
- 4capital citiesfalse
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उत्तर : 1. "Colonial ports"
व्याख्या :
Answer: A) Colonial ports Explanation: Oceania is a geographic region comprising Melanesia, Micronesia, Polynesia and Australasia. In Oceani, most towns began as Colonial Ports.
प्र: Which of the following is malleable? 2344 05b5cc6a4e4d2b4197774cc55
5b5cc6a4e4d2b4197774cc55- 1Icefalse
- 2Goldtrue
- 3Stonefalse
- 4Potteryfalse
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उत्तर : 2. "Gold"
व्याख्या :
Answer: B) Gold Explanation: Here in the given options, Gold is a malleable substance. Malleable substance means a metal or a material able to be hammered or pressed into shape without breaking or cracking. i.e, tensile.

