GATE Practice Question and Answer
8Q: 5x - 6 = 3x - 8 Solve the above equation. 1708 05b5cc63de4d2b4197774baf3
5b5cc63de4d2b4197774baf3- 12false
- 2-1true
- 3-2false
- 41false
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Answer : 2. "-1"
Explanation :
Answer: B) -1 Explanation: Given 5x - 6 = 3x - 8 5x - 3x = -8 + 6 2x = -2 => x = -1.
Q: Describe a time when you made a mistake ? 1708 05b5cc767e4d2b4197774fe1f
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Answer :
Explanation :
Mention the mistake and be honest about it, but always make sure that you follow it up with what you learnt from that episode and the improvements it has brought to your efficiency.
Q: In a competitive examination, the average marks for the entire examination was 60 marks. If 20% of the applicants scored 85 marks and 25% scored 95 marks. What was the average marks of the remaining applicants in the examination ? 1708 05b5cc76fe4d2b4197774ff7b
5b5cc76fe4d2b4197774ff7b- 160false
- 252false
- 345false
- 435true
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Answer : 4. "35"
Explanation :
Answer: D) 35 Explanation: Let the total applicants be 100 Then, 20% got 85 marks i.e 20 x 85 = 1700 and 25% got 95 marks i.e 25 x 95 = 2375 Now, the remaining applicants are 55 and let the average marks scored by them be x. Therefore, 2375 + 1700 + 55x = 60×100 6000 - 4075 = 55x 55x=1925 x=35.
Q: International Day of Happiness is celebrated throughout the world on ? 1708 05b5cc711e4d2b4197774f3eb
5b5cc711e4d2b4197774f3eb- 121st Marchfalse
- 223rd Marchfalse
- 320th Marchtrue
- 419th Marchfalse
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Answer : 3. "20th March"
Explanation :
Answer: C) 20th March Explanation: The International Day of Happiness (known as Happiness Day) is celebrated throughout the world on the 20th of March. The International Day of Happiness was founded on June 28, 2012, by the United Nations General Assembly when all 193 member states unanimously adopted UN resolution 66/281. It was celebrated for the first time in 2013.
Q: If 25% of a number is subtracted from a second number, the second number reduces to its four-sixth. What is the ratio of the first number to the second number ? 1707 05b5cc6dee4d2b4197774ea46
5b5cc6dee4d2b4197774ea46- 14:3true
- 22:3false
- 33:2false
- 45:3false
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Answer : 1. "4:3"
Explanation :
Answer: A) 4:3 Explanation: Let the numbers be p & q q-p/4 = 4q/6 => q-4q/6 = p/4 => 2q/6 = p/4 => p/q = 4/3
Q: Which elements are most abundant in living organisms? 1707 05b5cc698e4d2b4197774c60e
5b5cc698e4d2b4197774c60e- 1oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorustrue
- 2carbon, potassium, iron, magnesium, hydrogen, and nitrogenfalse
- 3hydrogen, carbon, calcium, potassium, oxygen, and phosphorusfalse
- 4oxygen, calcium, phosphorus, sodium, hydrogen, and carbonfalse
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Answer : 1. "oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus"
Explanation :
Answer: A) oxygen, nitrogen, carbon, hydrogen, sulfur, and phosphorus Explanation: Living organisms often contain trace amounts of several elements, but the most abundant ones are oxygen, carbon, hydrogen, nitrogen, calcium, sulphur and phosphorus.
Q: The sum of the digits of a two-digit number is 12. The difference of the digits is 6. Find the number ? 1705 05b5cc6d8e4d2b4197774e7af
5b5cc6d8e4d2b4197774e7af- 157false
- 275false
- 348false
- 439true
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Answer : 4. "39"
Explanation :
Answer: D) 39 Explanation: Let the two-digit number be 10a + ba + b = 12 --- (1)If a>b, a - b = 6If b>a, b - a = 6If a - b = 6, adding it to equation (1), we get2a = 18 => a =9so b = 12 - a = 3Number would be 93.if b - a = 6, adding it to the equation (1), we get2b = 18 => b = 9a = 12 - b = 3.Number would be 39.There fore, Number would be 39 or 93.
Q: Choose the missing terms in the given series from the four alternatives given below. GMQ, JOT, MQW, ? 1704 05b5cc76ae4d2b4197774fe6b
5b5cc76ae4d2b4197774fe6b- 1PTZfalse
- 2ORYfalse
- 3VXYfalse
- 4PSZtrue
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Answer : 4. "PSZ"
Explanation :
Answer: D) PSZ Explanation: The first letter moves three steps forward. The second letter moves two steps forward. The third letter moves three steps forward.

