IIT JEE Practice Question and Answer
8Q: Oldest Oil Field in India 2013 05b5cc6b9e4d2b4197774d748
5b5cc6b9e4d2b4197774d748- 1Mumbai High, Maharashtrafalse
- 2Anleshwar, Gujaratfalse
- 3Digboi, Assamtrue
- 4Nonefalse
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Answer : 3. "Digboi, Assam"
Explanation :
Answer: C) Digboi, Assam Explanation: Digboi has the distinction of being India's oldest continuously producing oilfield. Digboi refinery, now a division of Indian Oil Corporation, had a capacity of about 0.65 MMTPA as of 2003. Digboi is now Headquarter of Assam Oil Division of Indian Oil Corporation Limited, though the crude production is not high today.
Q: Leakage of which of the following gases caused the Bhopal gas tragedy ? 2012 05b5cc70be4d2b4197774f325
5b5cc70be4d2b4197774f325- 1Carbon monoxidefalse
- 2Methyl isocyanatetrue
- 3Nitrous oxidefalse
- 4Hydrogen sulphidefalse
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Answer : 2. "Methyl isocyanate"
Explanation :
Answer: B) Methyl isocyanate Explanation:
Q: Which statement fits the Frontier Ethic? 2012 15b5cc6b0e4d2b4197774d2bc
5b5cc6b0e4d2b4197774d2bc- 1Recycle plasticfalse
- 2Help those in needfalse
- 3He who has more toys winstrue
- 4Walk lightly on Earthfalse
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Answer : 3. "He who has more toys wins"
Explanation :
Answer: C) He who has more toys wins Explanation: Frontier Ethic is Spending Earth's assets at the cost of losing resource capital. A frontier ethic assumes that the earth has an unlimited supply of resources. It is the notion of disregarding the Earth for the benefit or gain of man. If resources run out in one area, more can be found elsewhere or alternatively human ingenuity will find substitutes. This attitude sees humans as masters who manage the planet. It is completely Anthropocentric.
Q: Vishal invested 10% more than Trishul. Trishul invested 10% less than Raghu. If the total sum of their investments is Rs. 5780, how much amount did Raghu invest ? 2011 05b5cc75ee4d2b4197774fc9d
5b5cc75ee4d2b4197774fc9d- 1Rs.2010false
- 2Rs.2200false
- 3Rs.2000true
- 4Rs.2100false
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Answer : 3. "Rs.2000"
Explanation :
Answer: C) Rs.2000 Explanation: Let money invested by Raghu = Rs. xMoney invested by Trishul = 9/10 x = 0.9xMoney invested by Vishal = 9/10x * 110/100 = 0.99xAlso, x+0.9x+0.99x = 5780= x= 5780/2.89 = 2000 Therefore, amount invested by Raghu is Rs. 2000.
Q: 7 years ago, the ratio of the ages of Anirudh to that of Bhavana, was 7:9. Chandhu is 12 years older than Anirudh and 12 years younger than Bhavana. What is Chandhu's present age? 2011 05b5cc6bbe4d2b4197774d849
5b5cc6bbe4d2b4197774d849- 191 yearsfalse
- 2115 yearsfalse
- 3103 yearstrue
- 4Can't be determinedfalse
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Answer : 3. "103 years"
Explanation :
Answer: C) 103 years Explanation: Let present Anirudh's age be 'A' and Bhavana's age be 'B' Given seven years, their ratio is 7:9 => A-7 : B-7 = 7 : 9 => 9A - 7B = 14 .......(1) And given, Chandhu is 12 years older than A nad 12 years younger than B => C = A + 12....(2) => B = C + 12 => B = A + 12 + 12 .....(From (2)) => B = A + 24 ....(3) Put (3) in (1) 9A - 7(A+24) = 14 9A - 7A - 168 = 14 2A = 182 => A = 91 years => C = A + 12 = 91 +12 = 103 years.
Q: The fastest growing plant is ______ ? 2011 05b5cc6cde4d2b4197774e1b3
5b5cc6cde4d2b4197774e1b3- 1Ashokafalse
- 2Banyanfalse
- 3Eucalyptustrue
- 4Rosefalse
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Answer : 3. "Eucalyptus"
Explanation :
Answer: C) Eucalyptus Explanation:
Q: Three friends Rudra, Siva and Anvesh start to run around a circular stadium. They complete a revolution in 24, 36 and 30 seconds respectively. After how many minutes will they meet at the starting point ? 2011 05b5cc6c2e4d2b4197774dbb4
5b5cc6c2e4d2b4197774dbb4- 160false
- 2120false
- 3360false
- 46true
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Answer : 4. "6"
Explanation :
Answer: D) 6 Explanation: For this we have to find the LCM of 24, 36 and 30 LCM of 24, 36 and 30 = 360 sec 360/60 min = 6 minutes.
Q: How many balls? Number of balls in the figure... 2011 05b5cc69ae4d2b4197774c796
5b5cc69ae4d2b4197774c796- Show AnswerHide Answer
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Answer :
Explanation :
You have to actually count all the balls in the pyramid.Simple way is to count the balls in each level. So lower most level lets say 1st level has 4 x 4 balls; i.e. 16 ballsSimilarly 2nd level has 3 x 3 balls; i.e. 9 balls.3rd level has 2 x 2 balls; i.e. 4 balls.The top most level has just 1 ball. So the total number of balls is 16+9+4+1 = 30. So the image has 30 Balls in all.

