GATE Practice Question and Answer
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Answer :
Explanation :
12 N in a C means 12 Numbers in a Clock.
Q: Which continent has the least countries? 1888 05b5cc672e4d2b4197774c0b9
5b5cc672e4d2b4197774c0b9- 1Africafalse
- 2South Americafalse
- 3Antarcticatrue
- 4Europefalse
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Answer : 3. "Antarctica"
Explanation :
Answer: C) Antarctica Explanation: Africa - 54 countries South America - 12┬аcountries Antarctica - 0┬аcountries Europe - 43┬аcountries. ┬а Hence, Antarctica┬аcontinent has the least countries.
Q: Vishal and Raghu jointly started a business. Vishal invested three times as Raghu did and invested his money for double time as compared to Raghu. Raghu earned Rs. 4000. If the gain is proportional to the money invested and the time for which the money is invested then the total gain was ┬а? 1888 05b5cc6dee4d2b4197774ea8f
5b5cc6dee4d2b4197774ea8f- 1Rs. 28,000true
- 2Rs. 18,000false
- 3Rs. 14,000false
- 4Rs. 8,000false
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Answer : 1. "Rs. 28,000"
Explanation :
Answer: A) Rs. 28,000 Explanation: Investments ratio is = 3:1Time period ratio is = 2:1 As they are proportional to gain ------Gain ratio of Vishal and raghu = 6:1 But given Raghu got Rs. 4000,┬а =? 1 ----- 4000┬а ┬а ┬а7 ----- ┬а ┬а? => Rs.28,000 The total gain =┬аRs.28,000
Q: A quantity of tea is sold at Rs. 5.75 per kilogram. The total gain by selling the tea at this rate is Rs. 60. Find the quantity of tea being sold if a profit of 15% is made on the deal ? 1888 05b5cc70ee4d2b4197774f332
5b5cc70ee4d2b4197774f332- 172 kgsfalse
- 280 kgstrue
- 376 kgsfalse
- 484 kgsfalse
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Answer : 2. "80 kgs"
Explanation :
Answer: B) 80 kgs Explanation: Say total cost price of tea is x.Then total profit at a rate of 15% is = (15x/100)According to question,15x/100 = 60so x = 400C.p of the tea is Rs. 400.so total selling price will be = (400+60) = Rs.460so the quantity of the tea will be = (460/5.75) = 80kg.
Q: Two numbers are in the ratio 3 : 7. If 6 be added to each of them, then they are in the ratio 5 : 9. Find the numbers ? 1886 05b5cc6c0e4d2b4197774dab7
5b5cc6c0e4d2b4197774dab7- 111 & 17false
- 27 & 17false
- 39 & 21true
- 413 & 23false
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Answer : 3. "9 & 21"
Explanation :
Answer: C) 9 & 21 Explanation: Let the two numbers be x and y Given x : y = 3 : 7 .....(1) Now, x+6 : y+6 = 5 : 9 .....(2) From (1), x = 3y/7 From (2), 5y - 9x = 24 => 5y - 9(3y/7) = 24 => y = 21 => From(1), x = 9 Hence, the two numbers be 9 and 21
Q: Bhel commissions another 600Mw thermal unit in which state ? 1886 15b5cc774e4d2b41977750061
5b5cc774e4d2b41977750061- 1Telanganatrue
- 2Andhra Pradeshfalse
- 3Chattisgarhfalse
- 4Karnatakafalse
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Answer : 1. "Telangana"
Explanation :
Answer: A) Telangana Explanation:
Q: Amino acids can be distinguished from one another by 1886 05b5cc697e4d2b4197774c5be
5b5cc697e4d2b4197774c5be- 1type of bond between the R group and the rest of the moleculefalse
- 2the number of R groups found on the amino acid moleculesfalse
- 3the chemical properties of their R groupstrue
- 4the chemical properties of the amino and carboxyl groupsfalse
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Answer : 3. "the chemical properties of their R groups"
Explanation :
Answer: C) the chemical properties of their R groups Explanation: Amino acids are organic compounds containing amine (-NH2) and carboxyl (-COOH) functional groups, along with a side chain (R group) specific to each amino acid. ┬а Depending on the nature of the side chain groups, three classes of aminoacids can e distinguished: 1. Amino acids with H ond donor and acceptor groups. Histidine, lysine, aspartic acid, threonine,... 2. Amino acids with donor grups only. Arginine, tryptophan and cysteine. 3. Amino acids with acceptor groups only. Asparagine and glutamine.
Q: If 6 (P's Capital ) = 8 ( Q's Capital ) = 12 ( R's Capital ) , then out of the total profit of Rs 4650 , R will receive ? 1885 05b5cc6fee4d2b4197774f161
5b5cc6fee4d2b4197774f161- 1Rs. 1033.33true
- 2Rs. 1024false
- 3Rs. 1148.14false
- 4Rs. 1245.32false
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Answer : 1. "Rs. 1033.33"
Explanation :
Answer: A) Rs. 1033.33 Explanation: Let P's capital = p, Q's capital = q and R's capital = r.Then 6p = 8q = 12r=> 3p = 4q = 6r=>q = 3p/4r = 3p/6 = p/2P : Q : R = p : 3p/4 : p/2= 4 : 3 : 2R's share = 4650 * (2/9) = 150*6 = Rs. 1033.33.