GATE Practice Question and Answer
8Q: What is the distance around a shape called? 2422 05b5cc636e4d2b4197774ba2e
5b5cc636e4d2b4197774ba2e- 1Volumefalse
- 2Areafalse
- 3Massfalse
- 4Perimetertrue
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Answer : 4. "Perimeter"
Explanation :
Answer: D) Perimeter Explanation: The distance around a shape or figure I called Perimeter. A perimeter is a path that surrounds a two-dimensional shape.
Q: What percent of a day is 3 hours? 2421 05b5cc69ae4d2b4197774c778
5b5cc69ae4d2b4197774c778- 114.9%false
- 212.5%true
- 315.6%%false
- 411.4%false
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Answer : 2. "12.5%"
Explanation :
Answer: B) 12.5% Explanation: Let p% of a day is 3 hrs. We know that a day has 24 hrs. => p x 24/100 = 3 => p = 300/24 => p = 12.5% Hence, 3 hrs is 12.5% of a day.
Q: On sport’s day, if 12 children were made to stand in each column, 98 columns could be formed. After a certain music being played the plan was that the children have to stand in concentric circles such that the innermost circle will have one student, the next circle will have two students, the third circle will have 3 students and so on. How many circles will be formed in this manner ? 2421 05b5cc71ee4d2b4197774f577
5b5cc71ee4d2b4197774f577- 144false
- 246false
- 348true
- 449false
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Answer : 3. "48"
Explanation :
Answer: C) 48 Explanation: No. of students will be 98 x 12 = 1176let us consider n circles then 1 + 2 + 3 + ....+ n = 1176n(n+1)/2 = 1176n = 48 circles.
Q: A man rows his boat 60 km downstream and 30 km upstream taking 3 hrs each time. Find the speed of the stream ? 2421 05b5cc777e4d2b41977750098
5b5cc777e4d2b41977750098- 15 kmphtrue
- 210 kmphfalse
- 315 kmphfalse
- 445 kmphfalse
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Answer : 1. "5 kmph"
Explanation :
Answer: A) 5 kmph Explanation: Speed of the boat downstream s=a/t= 60/3 = 20 kmph Speed of the boat upstream s= d/t = 30/3= 10 kmph Therefore, The speed of the stream = speed of downstream - speed of upstream2=5 kmph
Q: A substance that cannot be broken down into simpler substances 2420 05b5cc69ee4d2b4197774c98a
5b5cc69ee4d2b4197774c98a- 1Heterogenous mixurefalse
- 2Compoundfalse
- 3Homogenous mixturefalse
- 4Elementtrue
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Answer : 4. "Element"
Explanation :
Answer: D) Element Explanation: A substance that cannot be decomposed (broken down) into simpler substances by ordinary chemical means. Examples: gold, iron, carbon, hydrogen, oxygen, nitrogen. Material composed of only one kind of matter throughout (same atoms or same molecules).
Q: 8 S on a SS means? 2418 05b5cc6abe4d2b4197774d071
5b5cc6abe4d2b4197774d071- Show AnswerHide Answer
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Answer :
Explanation :
8 S on SS means 8 Sides on a Stop Sign. This is one type of Letter Equations which are well known phrases or facts where the key words have been replaced with the first letter of that word. These are often in the form of an equation, which contain a number, an = sign and the rest of the obscured phrase or fact. Some more of them are :: 90 D in a RA 26 L of the A 12 S of the Z.
Q: The ratio of investments of two partners A and B is 7:5 and the ratio of their profits is 7:10. If A invested the money for 5 months, find for how much time did B invest the money ? 2417 05b5cc6dfe4d2b4197774eaf3
5b5cc6dfe4d2b4197774eaf3- 111 monthsfalse
- 29 monthsfalse
- 37 monthsfalse
- 410 monthstrue
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Answer : 4. "10 months"
Explanation :
Answer: D) 10 months Explanation: 7x5: 5xk = 7:10k = 10 months
Q: Kalyan purchased a Maruti van for Rs. 1,96,000 and the rate of depreciation is 14(2/7) % per annum. Find the value of the van after two years ? 2416 05b5cc701e4d2b4197774f170
5b5cc701e4d2b4197774f170- 1Rs. 1,24,000false
- 2Rs. 1,44,000true
- 3Rs. 1,32,000false
- 4Rs. 1,62,000false
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Answer : 2. "Rs. 1,44,000"
Explanation :
Answer: B) Rs. 1,44,000 Explanation: Value of Maruti Van, V1 = Rs. 1,96,000Rate of depreciation, r = 14(2/7)% = 100/7%; Time, t = 2 yearsLet V2 is the value after depreciation. V2 = V11 - r100tV2 = 196001 - 10071002 V2 = 196000(6/7)(6/7) V2 = (196000x36)/49 = Rs. 1,44,000.

