GATE Practice Question and Answer
8Q: Groundwater is found underground in the zone of 2361 05b5cc696e4d2b4197774c575
5b5cc696e4d2b4197774c575- 1Penetrationfalse
- 2Aerationfalse
- 3Saturationfalse
- 4Both B & Ctrue
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Answer : 4. "Both B & C"
Explanation :
Answer: D) Both B & C Explanation: Groundwater is all the water that has penetrated the earth's surface and is found in one of two soil layers. The one nearest the surface is the "zone of aeration", where gaps between soil are filled with both air and water. Below this layer is the "zone of saturation", where the gaps are filled with water.
Q: A person got Rs.48 more when he invested a certain sum at compound interest instead of simple interest for two years at 8% p.a. Find the sum ? 2359 05b5cc6e0e4d2b4197774eb61
5b5cc6e0e4d2b4197774eb61- 1Rs.8000false
- 2Rs.6500false
- 3Rs.7500true
- 4Rs.5000false
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Answer : 3. "Rs.7500"
Explanation :
Answer: C) Rs.7500 Explanation: p=d×1002R2 Where d is difference, r is rate of interest. => (48 x 100 x 100) / 8 x 8 = Rs.7500
Q: Find out the wrong number in the following series ? 2880, 480, 92, 24, 8, 4, 4 2357 05b5cc720e4d2b4197774f64f
5b5cc720e4d2b4197774f64f- 1480false
- 292true
- 324false
- 44false
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Answer : 2. "92"
Explanation :
Answer: B) 92 Explanation: The given series of numbers follow the rule that, 2880/6 = 480480/5 = 9696/4 = 2424/3 = 88/2 = 44/1 = 4 But 92 is not in the rule. It is the wrong number in the given series.
Q: The compound interest earned by Sunil on a certain amount at the end of two years at the rate of 8% p.a. was Rs.2828.80. Find the total amount that Sunil got back at the end of two years in the form of principal plus interest earned ? 2357 05b5cc6dee4d2b4197774ea74
5b5cc6dee4d2b4197774ea74- 1Rs. 11828.80false
- 2Rs. 19828.80true
- 3Rs. 9828.80false
- 4Rs. 19328.80false
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Answer : 2. "Rs. 19828.80"
Explanation :
Answer: B) Rs. 19828.80 Explanation: Let the sum be Rs. P P{ 1+81002- 1 } = 2828.80 It is in the form of a2-b2 = a+ba-b P(8/100)(2 + 8/100) = 2828.80 P = 2828.80 / (0.08)(2.08) = 1360/0.08 = 17000 Principal + Interest = Rs. 19828.80
Q: Which statement best compares a line and a point? 2356 05b5cc622e4d2b4197774b7bf
5b5cc622e4d2b4197774b7bf- 1A point has no dimension and a line has one dimension.true
- 2A line can have line segments on it whereas a point cannot be on any line segment.false
- 3point is a location whereas a line has several planes located on itfalse
- 4A line can lie on a plane whereas a point cannot lie on a plane.false
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Answer : 1. "A point has no dimension and a line has one dimension."
Explanation :
Answer: A) A point has no dimension and a line has one dimension. Explanation: A point has no dimension and a line has one dimension is the statement that best compares a line and a point.
Q: The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e always come together ? 2355 05b5cc6d3e4d2b4197774e4d7
5b5cc6d3e4d2b4197774e4d7- 11/7false
- 28!false
- 37!false
- 41/14true
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Answer : 4. "1/14"
Explanation :
Answer: D) 1/14 Explanation: The 8 letters can be written in 8! ways.n(S) = 8!Let E be the event that the letters b,c,d,e always come together when the first 8 alphabets are written down.Now the letters a, (bcde), f, g and h can be arranged in 5! ways.The letters b,c,d and e can be arranged themselves in 4! ways.n(E) = 5! x 4!Now, the required P(E) = n(E)/n(S) = 5! x 4!/8! = 1/14Hence the answer is 1/14.
Q: 'BE' is related to 'GJ' in the same way as 'PS' is related to ? 2354 05b5cc736e4d2b4197774f84b
5b5cc736e4d2b4197774f84b- 1VXfalse
- 2TUfalse
- 3UXtrue
- 4TVfalse
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Answer : 3. "UX"
Explanation :
Answer: C) UX Explanation: Each corresponding letter moves five places forward in the alphabet.Here as BE is related to GJ then PS will relate to UX.
Q: Is a square a rhombus? 2353 05b5cc67ee4d2b4197774c250
5b5cc67ee4d2b4197774c250- 1TRUEtrue
- 2FALSE Answer & Explanation Answer:false
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Answer : 1. "TRUE"
Explanation :
Answer: A) TRUE Explanation: Yes, a square is a rhombus. But a rhombus is not a square unless the interior angles are at right angles. We know that, a square is a quadrilateral with all sides equal and all the interior angles are 90 deg i.e, at right angles. Whereas a rhombus is also a quadrilateral with all sides equal but the interior angles are not at right angles. Hence, if the interior angles of a rhombus are all at right angles (90 deg), then it is square.