GATE प्रश्न और उत्तर का अभ्यास करें
8प्र: A lady took loan from a bank at the rate of 12% p.a. simple interest. After 3 years she had to pay Rs. 5400 interest only for the period. The principal amount borrowed by her was : 1330 05b5cc6dbe4d2b4197774e904
5b5cc6dbe4d2b4197774e904- 1Rs. 15,000true
- 2Rs. 1,50,000false
- 3Rs. 1500false
- 4Rs. 1,62,000false
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उत्तर : 1. "Rs. 15,000"
व्याख्या :
Answer: A) Rs. 15,000 Explanation: Principal = Rs.(100 x 5400)/(12 x 3)= Rs. 15000.
प्र: Which Noble Gas has the highest First Ionization Energy? 1330 05b5cc6b0e4d2b4197774d298
5b5cc6b0e4d2b4197774d298- 1Neonfalse
- 2Heliumtrue
- 3Argonfalse
- 4Xenonfalse
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उत्तर : 2. "Helium"
व्याख्या :
Answer: B) Helium Explanation: Helium has the highest First Ionization Energy in the Noble Gases group. Ionization Energy :: Ionisation energy is the energy required to remove one mole of electrons from one mole of gaseous atoms. Atoms are more stable when they have full valence shells. Noble Gases have a very stable electron configuration, therefore, they have the highest amount of ionization energy within their periods. It decreases down a family because electrons farther from the nucleus are easier to remove. Ionization Energy levels of Noble Gases group in Descending Order :: He, Ne, Ar, Kr, Xe, Rn
प्र: Which international organization has declared 2017 as the “International Year of Sustainable Tourism for Development”? 1328 05b5cc771e4d2b4197774ffa8
5b5cc771e4d2b4197774ffa8- 1Asian Development Bank (ADfalse
- 2B) World Trade Organisation (WTO)false
- 3United Nations (UN)true
- 4International Monetary Fund (IMF)false
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उत्तर : 3. "United Nations (UN)"
व्याख्या :
Answer: C) United Nations (UN) Explanation: The United Nations (UN) has declared 2017 as the "International Year of Sustainable Tourism for Development" to celebrate and advance the commitment of the tourism division to building a superior world.The International Year aims to support a change in policies, business practices and consumer behavior towards a more sustainable tourism sector that can contribute effectively to the Sustainable Development Goals (SDGs).
प्र: A can complete a piece of work in 12 days and B is 60% more efficient than A. In how many days B will complete the same work ? 1326 05b5cc6dde4d2b4197774ea05
5b5cc6dde4d2b4197774ea05- 18.7 hrsfalse
- 25.2 hrsfalse
- 35 hrsfalse
- 47.5 hrstrue
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उत्तर : 4. "7.5 hrs"
व्याख्या :
Answer: D) 7.5 hrs Explanation: Ratio of times taken by A and B = 160 : 100A can do the work in 12 daysLet B can do the work in "D" days=> 160:100 = 12 : D=> D = 12 x 100/160 = 7.5 hrs
प्र: To fill 8 vacancies there are 15 candidates of which 5 are from ST. If 3 of the vacancies are reserved for ST candidates while the rest are open to all, Find the number of ways in which the selection can be done ? 1322 05b5cc6c4e4d2b4197774dcb3
5b5cc6c4e4d2b4197774dcb3- 17920true
- 274841false
- 314874false
- 410213false
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उत्तर : 1. "7920"
व्याख्या :
Answer: A) 7920 Explanation: ST candidates vacancies can be filled by C35 ways = 10 Remaining vacancies are 5 that are to be filled by 12 => C512= (12x11x10x9x8)/(5x4x3x2x1) = 792 Total number of filling the vacancies = 10 x 792 = 7920
प्र: How many minutes does a watch lose per day, if its hands coincide every 64 minutes ? 1319 05b5cc6d7e4d2b4197774e714
5b5cc6d7e4d2b4197774e714- 136 7/9 minfalse
- 232 8/11 mintrue
- 334 3/11 minfalse
- 465 5/11 minfalse
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उत्तर : 2. "32 8/11 min"
व्याख्या :
Answer: B) 32 8/11 min Explanation: 55 min. spaces are covered in 60 min. 60 min. spaces are covered in min. = min. Loss in 64 min. = min. Loss in 24 hrs = min. = min.
प्र: A town having teenagers(boys & girls) of 5000 requires 150 litre of water per head. It has a tank measuring 20 m × 15 m × 5 m. The water of this tank will sufficient for ____ days. 1315 05b5cc6c5e4d2b4197774dd82
5b5cc6c5e4d2b4197774dd82- 18false
- 26false
- 34false
- 42true
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उत्तर : 4. "2"
व्याख्या :
Answer: D) 2 Explanation: Total Water reqduired = 5000 × 150 lit = 750,000 litres = 750 cu.m. Volume of tank = 20 × 15 × 5 = 1500 Cu.m. Number of days required =1500/750 = 2 days.
प्र: Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 4 or 15 ? 1315 05b5cc741e4d2b4197774f9d6
5b5cc741e4d2b4197774f9d6- 16/19false
- 23/10true
- 37/10false
- 46/17false
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उत्तर : 2. "3/10"
व्याख्या :
Answer: B) 3/10 Explanation: Here, S = {1, 2, 3, 4, ...., 19, 20}=> n(s) = 20Let E = event of getting a multiple of 4 or 15 =multiples od 4 are {4, 8, 12, 16, 20}And multiples of 15 means multiples of 3 and 5= {3, 6 , 9, 12, 15, 18, 5, 10, 15, 20}.= the common multiple is only (15).=> E = n(E)= 6Required Probability = P(E) = n(E)/n(S) = 6/20 = 3/10.