GATE Practice Question and Answer
8Q: If the labour cost 20% of the cost of production and raw material cost 10% of the cost of production and the price on which article is sold is 20% above the cost of production. If the price of labour is increased by 40% and the price of raw material increased by 20% and rest other expenditure of cost remain constant. The industry thus decide to increase the selling price by 10%. Find the new profit percent ? 1989 05b5cc6c7e4d2b4197774de78
5b5cc6c7e4d2b4197774de78- 118%false
- 220%true
- 322%false
- 424%false
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Answer : 2. "20%"
Explanation :
Answer: B) 20% Explanation: Let the Cost of Production of the article = 100 Then, Labour Cost = 20 Raw Material = 10 Other Expenditure = 100 - 10 – 20 = 70 Selling Price of the article = 120 After increasing Labour and Raw material cost by 40% & 20% respectively, New Labour cost = 28 New Raw material cost = 12 New Cost of Production = 70 + 28 + 12 = 110 Then, New SP = 110% of 120 = 120 x 110/100 = 132 => New Gain = 132 - 110 = 22 => New Profit % = 22 x 100/110 = 20%
Q: Which of the following is not an intensive property? 1988 05b5cc6ade4d2b4197774d139
5b5cc6ade4d2b4197774d139- 1Weighttrue
- 2Densityfalse
- 3Refractive indexfalse
- 4Melting pointfalse
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Answer : 1. "Weight"
Explanation :
Answer: A) Weight Explanation: An intensive property is a physical quantity whose value does not depend on the amount of the substance for which it is measured. For example, the temperature of a system in thermal equilibrium is the same as the temperature of any part of it. If the system is divided the temperature of each subsystem is identical. The same applies to the density of a homogeneous system, if the system is divided in half, the mass and the volume change in the identical ratio and the density remains unchanged. Additionally, the boiling point of a substance is another example of an intensive property. For example, the boiling point for water is 100 °C at a pressure of one atmosphere, a fact which remains true regardless of quantity.
Q: Which city has become the first Indian city to have its own logo? 1987 05b5cc6b9e4d2b4197774d734
5b5cc6b9e4d2b4197774d734- 1Bengalurutrue
- 2Hyderabadfalse
- 3New Delhifalse
- 4Gujaratfalse
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Answer : 1. "Bengaluru"
Explanation :
Answer: A) Bengaluru Explanation: Bengaluru becomes the first Indian city to get its very own logo Much like New York and Singapore, Bengaluru is set to get its own logo, becoming the first Indian city to do so.
Q: If a man buys 1 lt of milk for Rs.12 and mixes it with 20% water and sells it for Rs.15, then what is the percentage of gain ? 1985 05b5cc74fe4d2b4197774fb12
5b5cc74fe4d2b4197774fb12- 125%true
- 230%false
- 317%false
- 419%false
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Answer : 1. "25%"
Explanation :
Answer: A) 25% Explanation: He has gain = 15 - 12 = 3,Gain% = (3/12) x 100 = (100/4) = 25.He has 25% gain.
Q: Covalent bonds hold atoms together because they 1983 05b5cc619e4d2b4197774b73e
5b5cc619e4d2b4197774b73e- 1fill shells without giving atoms much chargefalse
- 2bring electrons closer to protonsfalse
- 3Both A & Btrue
- 4use forces between nuclei as well as forces between electronsfalse
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Answer : 3. "Both A & B"
Explanation :
Answer: C) Both A & B Explanation: Covalent bonds hold atoms together because the attraction between the positively charged nuclei and the negatively charged shared electrons is greater than the repulsions between the nuclei themselves.
Q: Find the Odd One Out? 3, 4, 14, 48, 576, 27648 1982 05b5cc6b0e4d2b4197774d2c6
5b5cc6b0e4d2b4197774d2c6- 14false
- 214true
- 348false
- 427648false
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Answer : 2. "14"
Explanation :
Answer: B) 14 Explanation: Given Number series is : 3 4 14 48 576 27648 It follows a pattern that, 3 4 4 x 3 = 12 but not 14 12 x 4 = 48 48 x 12 = 576 576 x 48 = 27648 Hence, the odd one in the given Number Series is 14.
Q: Who is the richest person in the world 2018? 1981 05b5cc60de4d2b4197774b5ff
5b5cc60de4d2b4197774b5ff- 1Jeff Bezostrue
- 2Bill Gatesfalse
- 3Warren Buffetsfalse
- 4Mark Zuckerbergfalse
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Answer : 1. "Jeff Bezos"
Explanation :
Answer: A) Jeff Bezos Explanation: Jeff Bezos is the richest person in modern history. The Amazon.com Inc. founder’s net worth broke $150 billion in New York on 16th July 2018 morning, according to the Bloomberg Billionaires Index. That’s about $55 billion more than Microsoft Corp. co-founder Bill Gates, the world’s second-richest person.
Q: Statement: There is a substantial increase in the number of accidents causing deaths and severe injuries due to malfunctioning of the traffic signals.Course of action:a. The traffic police should immediately post traffic personnel at the junctions.b. The signal system should immediately be repaired or replaced. 1981 05b5cc767e4d2b4197774fe1a
5b5cc767e4d2b4197774fe1a- 1Only a followsfalse
- 2Either a or b followstrue
- 3Only b followsfalse
- 4Neither a nor b followsfalse
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Answer : 2. "Either a or b follows"
Explanation :
Answer: B) Either a or b follows Explanation: Clearly, either the traffic signals should be made to function properly or traffic personnel should be deployed to guide vehicular movement in the right way. So either I or II follows.

