GATE Practice Question and Answer
8Q: Rajitha invested 25% more than Santhosh. Santhosh invested 30% less than Raju, who invested Rs. 6,000. What is the ratio of the amount that Rajitha invested to the total amount invested by all of them together ? 1687 05b5cc736e4d2b4197774f850
5b5cc736e4d2b4197774f850- 125 : 114false
- 235 : 103true
- 315 : 108false
- 441 : 94false
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Answer : 2. "35 : 103"
Explanation :
Answer: B) 35 : 103 Explanation: Santhosh's investment = 6000 x 70/100 = Rs.4200Rajitha's investment = 4200 x 5/4 = Rs.5250Therefore, total amount invested = 6000 + 4200 + 5250 = Rs.15450.Required ratio = 5250 : 15450 = 35 : 103.
Q: Choose the word which gives similar meaning to the given word from the following options. 'Autopsy' 1686 05b5cc75ee4d2b4197774fcfd
5b5cc75ee4d2b4197774fcfd- 1Diagnosisfalse
- 2Rebuildfalse
- 3Manufacturefalse
- 4Postmortemtrue
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Answer : 4. "Postmortem"
Explanation :
Answer: D) Postmortem Explanation: Autopsy is the medical term for postmortem.
Q: Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is ? 1686 05b5cc6d7e4d2b4197774e6e2
5b5cc6d7e4d2b4197774e6e2- 142 secfalse
- 244 secfalse
- 346 secfalse
- 448 sectrue
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Answer : 4. "48 sec"
Explanation :
Answer: D) 48 sec Explanation: Relative speed = 60 + 90 = 150 km/hr. = 150 x 5/18 = 125/3 m/sec. Distance covered = 1.10 + 0.9 = 2 km = 2000 m. Required time = 2000 x 3/125 = 48 sec.
Q: The element common to all Acids is 1686 05b5cc6afe4d2b4197774d23a
5b5cc6afe4d2b4197774d23a- 1Nitrogenfalse
- 2Oxygenfalse
- 3Hydrogentrue
- 4Carbonfalse
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Answer : 3. "Hydrogen"
Explanation :
Answer: C) Hydrogen Explanation: Hydrogen is the common element to all Acids. But every element which contains Hydrogen is not an Acid. Most of the acids also contain Oxygen.
Q: The ability to do work is called Energy. 1685 05b5cc6a4e4d2b4197774cc5f
5b5cc6a4e4d2b4197774cc5f- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: Yes, the ability to do work is called Energy is True.
Q: Choose the synonym of 'Hypothesis' from the following options ? 1685 05b5cc75ee4d2b4197774fcd9
5b5cc75ee4d2b4197774fcd9- 1Theorytrue
- 2Fascinationfalse
- 3Complexityfalse
- 4Fallingfalse
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Answer : 1. "Theory"
Explanation :
Answer: A) Theory Explanation: 'Hypothesis' is a word that gives a brief explanation of the concepts based on the limited evidence. The word 'theory' is closest in meaning to it.
Q: What can go up a chimney down, but cannot go down a chimney up? 1685 05b5cc645e4d2b4197774bba9
5b5cc645e4d2b4197774bba9- Show AnswerHide Answer
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Answer :
Explanation :
An Umbrella. Yes, when it is open it can't be fit under a chimney but when it is closed it can be fit down a chimney.
Q: What is the interest rate per annum, if a sum of money invested at compound interest amount to Rs. 2400 in 3 years and in 4 years to Rs. 2,520? 1685 05b5cc68be4d2b4197774c38a
5b5cc68be4d2b4197774c38a- 13.5%false
- 24%false
- 35%true
- 46.5%false
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Answer : 3. "5%"
Explanation :
Answer: C) 5% Explanation: Let 'R%' be the rate of interest From the given data, 25202400 = 1 + R10041 + R1003⇒1 + R100 = 6360⇒R = 5 Hence, the rate of interest R = 5% per annum.