GATE Practice Question and Answer
8Q: In order to maximize his gain, a shopping mall owner decides to reduce the price of electronics goods by 20% and as a result of this, the sales of electronics increase by 40%. If, as a result of these changes, he is able to increase his weekly collection by Rs. 1,05,000, find by what value did the gross collection increase per day? 4626 05b5cc6aee4d2b4197774d188
5b5cc6aee4d2b4197774d188- 1Rs. 14400false
- 2Rs. 14600false
- 3Rs. 14800false
- 4Rs. 15000true
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Answer : 4. "Rs. 15000"
Explanation :
Answer: D) Rs. 15000 Explanation: It won't requires that much solving. Here given the increase in weekly collection by Rs. 1,05,000 That is this increase denotes for all 7 days. => Gross Collection increase per day = Rs. 1,05,0007 = Rs. 15,000 Hence, the gross collection increase per day = Rs. 15,000.
Q: An alloy of copper and bronze weight 50g. It contains 80% Copper. How much copper should be added to the alloy so that percentage of copper is increased to 90%? 1509 05b5cc6aee4d2b4197774d179
5b5cc6aee4d2b4197774d179- 145 gmfalse
- 250 gmtrue
- 355 gmfalse
- 460 gmfalse
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Answer : 2. "50 gm"
Explanation :
Answer: B) 50 gm Explanation: Initial quantity of copper =80100 x 50 = 40 g And that of Bronze = 50 - 40 = 10 g Let 'p' gm of copper is added to the mixture => 50 + p x 90100 = 40 + p => 45 + 0.9p = 40 + p => p = 50 g Hence, 50 gms of copper is added to the mixture, so that the copper is increased to 90%.
Q: There are 5 consecutive odd numbers. If the difference between square of the average of first two odd number and the of the average last two odd numbers is 396, what is the smallest odd number? 1750 05b5cc6aee4d2b4197774d165
5b5cc6aee4d2b4197774d165- 129true
- 227false
- 331false
- 433false
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Answer : 1. "29"
Explanation :
Answer: A) 29 Explanation: Let the five consecutive odd numbers be x-4, x-2, x, x+2, x+4 According to the question, Difference between square of the average of first two odd number and the of the average last two odd numbers is 396 i.e, x+3 and x-3 ⇒x + 32 - x - 32 = 396⇒ x2 + 9 + 6x - x2 + 6x - 9 = 396⇒ 12x = 396⇒ x = 33 Hence, the smallest odd number is 33 - 4 = 29.
Q: Reptile is to Lizard as Flower is to 2321 05b5cc6aee4d2b4197774d160
5b5cc6aee4d2b4197774d160- 1Orchidstrue
- 2Stemfalse
- 3Leaffalse
- 4Petalfalse
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Answer : 1. "Orchids"
Explanation :
Answer: A) Orchids Explanation: Here Lizard is a type of Reptiles whereas Orchid is a type of flowers. Other than Orchids all are parts of Plants. Hence, Reptile is to Lizard as Flower is to Orchids.
Q: What has 4 Eyes But cannot see? 1235 05b5cc6aee4d2b4197774d15d
5b5cc6aee4d2b4197774d15d- Show AnswerHide Answer
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Answer :
Explanation :
What has 4 Eyes But cannot see is Mississippi. The wording of Mississippi has 4 'i''s. But it can't see.
Q: Poison glands of snakes are homologous to 2942 05b5cc6aee4d2b4197774d153
5b5cc6aee4d2b4197774d153- 1sebaceous glands of mammalsfalse
- 2salivary glands of vertebratestrue
- 3stings of raysfalse
- 4electric organs of fishesfalse
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Answer : 2. "salivary glands of vertebrates"
Explanation :
Answer: B) salivary glands of vertebrates Explanation: Here Homologous Means having the same relation or relative position or structure. Here in snakes poison is in glands and here salivary glands are in Vertebrates.
Q: Nucleus of Hydrogen atom consists of 1665 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.
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Answer :
Explanation :
52 C in a P represents 52 Cards in a Pack. Similar to 12 S of the Z 5 C in an OF

