GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: P, Q, and R can do a job in 12 days together. If their efficiency of working be in the ratio 3 : 8 : 5, Find in what time Q can complete the same work alone? 2008 05b5cc698e4d2b4197774c61d
5b5cc698e4d2b4197774c61d- 136 daystrue
- 230 daysfalse
- 324 daysfalse
- 422 daysfalse
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उत्तर : 1. "36 days"
व्याख्या :
Answer: A) 36 days Explanation: Given the ratio of efficiencies of P, Q & R are 3 : 8 : 5 Let the efficiencies of P, Q & R be 3x, 8x and 5x respectively They can do work for 12 days. => Total work = 12 x 16x = 192x Now, the required time taken by Q to complete the job alone = 162x8x = 24 days.
प्र: Which of the following statements is correct? 2006 05b5cc6afe4d2b4197774d20b
5b5cc6afe4d2b4197774d20b- 1I am very happy to start this Programtrue
- 2I am too happy to start this Programfalse
- 3Both A & Bfalse
- 4Nonefalse
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उत्तर : 1. "I am very happy to start this Program"
व्याख्या :
Answer: A) I am very happy to start this Program Explanation: Here I am very happy to start this Program is correct statement. "Too" is not used with pleasant adjectives. It means 'more than required' and is usually used with unpleasant adjectives. So, 'too healthy', 'too happy', 'too glad' etc are wrong.
प्र: Crack the series missing Number Puzzle ? 2005 05b5cc6c0e4d2b4197774dad0
5b5cc6c0e4d2b4197774dad0- 1330false
- 2253false
- 3221false
- 4363true
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उत्तर : 4. "363"
व्याख्या :
Answer: D) 363 Explanation: The given numbers in the series follows a pattern that, 3 (3 x 3) + 3 = 12 (12 x 3) + 3 = 39 (39 x 3) + 3 = 120 (120 x 3) + 3 = 363.
प्र: What is the distance around a shape called? 2003 05b5cc636e4d2b4197774ba2e
5b5cc636e4d2b4197774ba2e- 1Volumefalse
- 2Areafalse
- 3Massfalse
- 4Perimetertrue
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उत्तर : 4. "Perimeter"
व्याख्या :
Answer: D) Perimeter Explanation: The distance around a shape or figure I called Perimeter. A perimeter is a path that surrounds a two-dimensional shape.
प्र: Which one of the following scripts of ancient India was written from right to left ? 2001 05b5cc6dbe4d2b4197774e946
5b5cc6dbe4d2b4197774e946- 1Brahmifalse
- 2Kharoshtitrue
- 3Nandnagarifalse
- 4Sharadafalse
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उत्तर : 2. "Kharoshti"
व्याख्या :
Answer: B) Kharoshti Explanation: The Kharoshi script is an ancient script used by the ancient Gandhara culture of South Asia primarily in modern-day Afghanistan and Pakistan to write the Gandhari language (a dialect of Prakrit) and the Sanskrit language.
प्र: Who is known as the Father of Geometry? 2001 05b5cc6a0e4d2b4197774ca4c
5b5cc6a0e4d2b4197774ca4c- 1Aryabhatafalse
- 2Thales of Miletusfalse
- 3Pythagoras of Samosfalse
- 4Euclidtrue
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उत्तर : 4. "Euclid"
व्याख्या :
Answer: D) Euclid Explanation: Euclid of Alexandria was a Greek mathematician, often referred to as the Father of Geometry.
प्र: Mr. X sold two properties P1 and P2 for Rs 1,00,000 each. He sold property P1 for 20% less than what he paid for it. What is the percentage of profit of property P2, so that he is not in gain or loss on the sale of two properties? 2001 05b5cc6aae4d2b4197774cf6f
5b5cc6aae4d2b4197774cf6f- 133.33%true
- 229.97%false
- 325%false
- 422.22%false
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उत्तर : 1. "33.33%"
व्याख्या :
Answer: A) 33.33% Explanation: Let 'A' be the cost price of property P1. Then from the given data, the selling price of P1 = Rs. 1,00,000 He got 20% loss on selling P1 ⇒A - 20A100 = 100000⇒A = 1,25,000 Therefore, the amount he lossed on selling P1 = 25,000 As ge he got no loss or gain on sale of P1 and P2, the gain on selling P2 = 25,000 But the selling price of P2 = 1,00,000 => Cost price of P2 = 75,000 Hence, the profit percentage on P2 = GainCPx 100 = 2500075000x100 = 1003= 33.33%
प्र: If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days what is time taken by 15 men and 20 boys? 2000 05b5cc6b9e4d2b4197774d72a
5b5cc6b9e4d2b4197774d72a- 14 daystrue
- 26 daysfalse
- 37 daysfalse
- 45 daysfalse
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उत्तर : 1. "4 days"
व्याख्या :
Answer: A) 4 days Explanation: Given that 6 men and 8 boys can do a piece of work in 10 days 26 men and 48 boys can do the same in 2 days As the work done is equal, 10(6M + 8B) = 2(26M + 48B) 60M + 80B = 52M + 96B => M = 2B => B = M/2 ……(1) Now Put (1) in 15M + 20B => 15M + 10M = 25M Now, 6M + 8B in 10 days => (6M + 4M) 10 = 100M Then D(25M) = 100M => D = 4 days.

