GATE Practice Question and Answer
8Q: If a trader sold two cars each at Rs. 404415 and gains 15% on the first and loses 15% on the second, then his profit or loss percent on the whole is ? 1860 05b5cc6d8e4d2b4197774e732
5b5cc6d8e4d2b4197774e732- 11.44 %false
- 22.02 %false
- 31.04 %false
- 42.25 %true
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Answer : 4. "2.25 %"
Explanation :
Answer: D) 2.25 % Explanation: SP of each car is Rs. 404415, he gains 15% on first car and losses 15% on second car. In this case, there will be loss and percentage of loss is given by = [(profit%)(loss%)]/100 = (15)(15)/100 % = 2.25%
Q: Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ? 1859 05b5cc761e4d2b4197774fd2a
5b5cc761e4d2b4197774fd2a- 16 : 8 : 9false
- 28 : 6 : 9false
- 39 : 8 : 6true
- 46 : 5 : 4false
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Answer : 3. "9 : 8 : 6"
Explanation :
Answer: C) 9 : 8 : 6 Explanation: Given the salaries are in the ratio of 4 : 5 : 6 Now the salaries are increased by 50%, 60% and 50% respectively The New ratio of salaries will be 4 x (150/100) : 5 x (160/100) : 6 x (150/100) = 6 : 8 : 9 The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6
Q: Which digits will come in the place of '?' in the following series ? 372, 823, 644, 582, 46?, 8?7 1858 05b5cc731e4d2b4197774f800
5b5cc731e4d2b4197774f800- 14, 4false
- 26, 2true
- 33, 2false
- 42, 5false
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Answer : 2. "6, 2"
Explanation :
Answer: B) 6, 2 Explanation: Given series is 372, 823, 644, 582, 46?, 8?7 Here the series follow the rule that :372 = 3+7+2 = 12823 = 8+2+3 = 13644 = 6+4+4 = 14582 = 5+8+2 = 1546? = 4+6+? = 16 => ? = 68?7 = 8+?+7 = 17 => ? = 2 So the missing numbers are 6 and 2
Q: Soil erosion can be prevented by 1856 05b5cc6a1e4d2b4197774cad1
5b5cc6a1e4d2b4197774cad1- 1Removal of vegetationfalse
- 2Overgrazingfalse
- 3Afforestationtrue
- 4Increasing bird populationfalse
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Answer : 3. "Afforestation"
Explanation :
Answer: C) Afforestation Explanation: The four most common soil erosion prevention methods are vegetation, geotextiles, mulch, and retaining walls. By planting grass in areas of concentrated water flow, farmers can prevent much of the soil erosion that results from runoff, as the grass stabilizes the soil while still providing an outlet for drainage. Preventing soil erosion is critical in protecting your property and exposed soil, whether from wind, weather, running water, and even the after-effects of the forest fire.
Q: The first stage in the formation of coal is 1856 15b5cc6a6e4d2b4197774cd91
5b5cc6a6e4d2b4197774cd91- 1Lignitefalse
- 2Bituminousfalse
- 3Anthracitefalse
- 4Peattrue
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Answer : 4. "Peat"
Explanation :
Answer: D) Peat Explanation: The first of the four stages of coal formation is lignite coal. There are four stages of coal formation: 1. Peat, 2. Lignite, 3. Bituminous and 4. Anthracite. The bacteria has removed a large portion of the other constituents of the plant matter and left around 25 to 34 percent.
Q: Choose the missing terms in the given series from the four alternatives given below. C, E, G, J, M, Q, ? 1854 05b5cc76ae4d2b4197774fe70
5b5cc76ae4d2b4197774fe70- 1Tfalse
- 2Utrue
- 3Pfalse
- 4Vfalse
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Answer : 2. "U"
Explanation :
Answer: B) U Explanation: The letters move 2, 2, 3, 3, 4, 4, ... steps forward.
Q: I am an 8 letter word. First 4 is the question. 2, 3, 4 protects our head. 5, 6, 7 IT company name. 7 & 8 are the same letters. Who am I? 1854 05b5cc6a7e4d2b4197774cdee
5b5cc6a7e4d2b4197774cdee- Show AnswerHide Answer
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Answer :
Explanation :
That 8 letter word is Whatsapp (a messenger app) First four letters: WHAT a question Letters 2,3,4: HAT protects our headLetters 5,6,7: SAP an IT companyLetters 7,8: PP same.
Q: After working for 8 days, Hari Ram finds that only 1/3 rd of the work has been done. He employs Satya who is 60% as efficient as Hari Ram. How many days more would Satya take to complete the work ? 1853 05b5cc6d3e4d2b4197774e4fa
5b5cc6d3e4d2b4197774e4fa- 124 1/2 daysfalse
- 225 3/2 daysfalse
- 324 2/3 daysfalse
- 426 2/3 daystrue
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Answer : 4. "26 2/3 days"
Explanation :
Answer: D) 26 2/3 days Explanation: 1/3 ---- 8 1 -------? Hari can do total work in = 24 days As satya is 60% efficient as Hari, then Satya = 1/24 x 60/100 = 1/40 => Satya can do total work in 40 days 1 ----- 40 2/3 ---- ? => 26 2/3 days.