GATE Practice Question and Answer
8Q: 6 boys and 8 girls can do job in 10 days , 26 boys & 48 women do work in 2 days. Find time taken by 15 boys and 20 girls to do same work ? 2449 05b5cc74ae4d2b4197774fadb
5b5cc74ae4d2b4197774fadb- 12 daysfalse
- 23 daysfalse
- 34 daystrue
- 45 daysfalse
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Answer : 3. "4 days"
Explanation :
Answer: C) 4 days Explanation: One day work of 6 boys and 8 girls is given as 6b + 8g = 1/10 -------->(I) One day work of 26 boys and 48 women is given as 26b + 48w = 1/2 -------->(II) Divide both sides by 2 in (I) and then multiply both sides by 5 Now we get, 15b + 20g = 1/4. Therefore, 15 boys and 20 girls can do the same work in 4 days.
Q: 3 is what percent of 5? 2447 05b5cc64ae4d2b4197774bc0c
5b5cc64ae4d2b4197774bc0c- 145%false
- 260%true
- 372%false
- 480%false
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Answer : 2. "60%"
Explanation :
Answer: B) 60% Explanation: Here it is asked that 3 is what percent of 5 Let 3 is K percent of 5. => K x 5/100 = 3 => K = 300/5 = 60 Hence, 3 is 60% of 5.
Q: Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ? 2442 05b5cc761e4d2b4197774fd2a
5b5cc761e4d2b4197774fd2a- 16 : 8 : 9false
- 28 : 6 : 9false
- 39 : 8 : 6true
- 46 : 5 : 4false
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Answer : 3. "9 : 8 : 6"
Explanation :
Answer: C) 9 : 8 : 6 Explanation: Given the salaries are in the ratio of 4 : 5 : 6 Now the salaries are increased by 50%, 60% and 50% respectively The New ratio of salaries will be 4 x (150/100) : 5 x (160/100) : 6 x (150/100) = 6 : 8 : 9 The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6
Q: Covalent bonds hold atoms together because they 2442 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: What can you hear but not touch or see? 2441 05b5cc69ee4d2b4197774c96a
5b5cc69ee4d2b4197774c96a- Show AnswerHide Answer
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Answer :
Explanation :
The sound is what can you hear but not touch or see.
Q: Yellow color of urine is due to presence of 2440 05b5cc6a4e4d2b4197774cc9a
5b5cc6a4e4d2b4197774cc9a- 1Bile juicefalse
- 2Urochrometrue
- 3Lymphfalse
- 4Cholesterolfalse
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Answer : 2. "Urochrome"
Explanation :
Answer: B) Urochrome Explanation: The yellow color of urine is due to the presence of a yellow pigment, urochrome. The color of normal urine is usually light yellow to amber. Generally the greater the solute volume the deeper the color.
Q: 70000 a year is how much an hour? 2438 05b5cc626e4d2b4197774b886
5b5cc626e4d2b4197774b886- 180false
- 28true
- 30.8false
- 40.08false
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Answer : 2. "8"
Explanation :
Answer: B) 8 Explanation: Given for year = 70000 => 365 days = 70000 => 365 x 24 hours = 70000 => 1 hour = ? 70000/365x24 = 7.990 = 8
Q: Choose apropriate words which gives a complete meaning to the sentence from the given options. we were thinking ______ it _______ something like a requiem for our age. 2433 05b5cc741e4d2b4197774f9c7
5b5cc741e4d2b4197774f9c7- 1for, becausefalse
- 2for, asfalse
- 3of, astrue
- 4of, sincefalse
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Answer : 3. "of, as"
Explanation :
Answer: C) of, as Explanation: