GATE Practice Question and Answer
8Q: The sum of one-half, one-third and one-fourth of a number exceeds the number by 22. The number is 1824 05b5cc73ae4d2b4197774f907
5b5cc73ae4d2b4197774f907- 1264true
- 2284false
- 3215false
- 4302false
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Answer : 1. "264"
Explanation :
Answer: A) 264 Explanation: Let the number be 'x'. Then, from given data x/2 + x/3 + x/4 = x+2213x/12 = x+22x = 264
Q: Nucleus of Hydrogen atom consists of 1824 05b5cc6aee4d2b4197774d149
5b5cc6aee4d2b4197774d149- 12 protons onlyfalse
- 22 neutrons onlyfalse
- 31 proton onlytrue
- 41 electron onlyfalse
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Answer : 3. "1 proton only"
Explanation :
Answer: C) 1 proton only Explanation: The nucleus of hydrogen consists of only a single proton. Its parts are a single negatively-charged electron that circles a single positively-charged nucleus of the hydrogen atom. The electron is bound to the nucleus by the Coulomb force.
Q: Find the Missing Number Puzzle for the Given 1824 05b5cc6afe4d2b4197774d1d3
5b5cc6afe4d2b4197774d1d3- 18false
- 216false
- 39true
- 412false
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Answer : 3. "9"
Explanation :
Answer: C) 9 Explanation: Given 6 = 3 => Number of letters in SIX = 3 12 = 6 => Number of letters in TWELVE = 6 14 = 8 => Number of letters in FOURTEEN = 8 Similarly, 22 = 9 => Number of letters in TWENTY TWO = 9 Therefore, 22 = 9.
Q: Manideep purchases 30kg of barley at the rate of 11.50/kg and 20kg at the rate of 14.25/kg. He mixed the two and sold the mixture in the shop. At what price per kg should he sell the mixture to make 30% profit to him ? 1823 05b5cc6c5e4d2b4197774ddc3
5b5cc6c5e4d2b4197774ddc3- 115.84false
- 214.92false
- 313.98false
- 416.38true
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Answer : 4. "16.38"
Explanation :
Answer: D) 16.38 Explanation: Given, Manideep purchases 30kg of barley at the rate of 11.50/kg nad 20kg at the rate of 14.25/kg. Total cost of the mixture of barley = (30 x 11.50) + (20 x 14.25) => Total cost of the mixture = Rs. 630 Total kgs of the mixture = 30 + 20 = 50kg Cost of mixture/kg = 630/50 = 12.6/kg To make 30% of profit => Selling price for manideep = 12.6 + 30% x 12.6 => Selling price for manideep = 12.6 + 3.78 = 16.38/kg.
Q: A fair coin is tossed 11 times. What is the probability that only the first two tosses will yield heads ? 1823 05b5cc6c8e4d2b4197774df23
5b5cc6c8e4d2b4197774df23- 1(1/2)^11true
- 2(9)(1/2)false
- 3(11C2)(1/2)^9false
- 4(1/2)false
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Answer : 1. "(1/2)^11"
Explanation :
Answer: A) (1/2)^11 Explanation: Probability of occurrence of an event, P(E) = Number of favorable outcomes/Numeber of possible outcomes = n(E)/n(S) ⇒ Probability of getting head in one coin = ½, ⇒ Probability of not getting head in one coin = 1- ½ = ½, Hence, All the 11 tosses are independent of each other. ∴ Required probability of getting only 2 times heads =122×129=1211
Q: When was Zoroastrianism founded? 1823 05b5cc678e4d2b4197774c14d
5b5cc678e4d2b4197774c14d- 14th century BCEfalse
- 26th century BCEtrue
- 38th century BCEfalse
- 410th century BCEfalse
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Answer : 2. "6th century BCE"
Explanation :
Answer: B) 6th century BCE Explanation: Zoroastrianism is one of the world's oldest extant religions. It is the ancient pre-Islamic religion of Iran that survives there in isolated areas and, more prosperously, in India, where the descendants of Zoroastrian Iranian (Persian) immigrants are known as Parsis, or Parsees. The Iranian prophet and religious reformer Zarathustra flourished before the 6th century BCE more widely known outside Iran as Zoroaster is traditionally regarded as the founder of the religion. Zoroastrianism contains both monotheistic and dualistic features. It likely influenced the other major Western religions—Judaism, Christianity, and Islam.
Q: Who has become world's no.1 Junior Badminton player in 2017 ? 1822 05b5cc75ee4d2b4197774fce3
5b5cc75ee4d2b4197774fce3- 1Chia Hao Leefalse
- 2Lakshya Sentrue
- 3Chirag Senfalse
- 4Karthikey Gulshan Kumarfalse
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Answer : 2. "Lakshya Sen"
Explanation :
Answer: B) Lakshya Sen Explanation: India's Lakshya Sen has become the World No 1 Junior Badminton player. He achieved the distinction in the latest rankings of the Badminton World Federation (BWF). Fifteen-year-old is the first shuttler from Uttarakhand to attain the numero uno spot at the international level. Lakshya, who is considered as the shining future star of Indian badminton, moved ahead of Chia Hao Lee of the Chinese Taipei, to attain the top spot. According to BWF current rankings, Lakshya has 16,903 points in eight tournaments he has played in the season. Chia Hao, who is at the second spot, has 16,091 points.
Q: 18 tens 20 ones = 1822 05b5cc688e4d2b4197774c34b
5b5cc688e4d2b4197774c34b- 11820false
- 2180false
- 3200true
- 4160false
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Answer : 3. "200"
Explanation :
Answer: C) 200 Explanation: 18 tens 20 ones, the given stateent can be split into 18 tens = 18 x 10 = 180 20 ones = 20 x 1 = 20 Then add both => 180 + 20 = 200 Hence, 18 tens 20 ones = 200.

