IIT JEE Practice Question and Answer
8Q: The More You Have, The Less You See. What is it? 1548 05b5cc6b0e4d2b4197774d2a2
5b5cc6b0e4d2b4197774d2a2- 1Lightfalse
- 2Darknesstrue
- 3Sightfalse
- 4Nonefalse
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Answer : 2. "Darkness"
Explanation :
Answer: B) Darkness Explanation: The More You Have the Darkness, The Less You See i.e, visible less.
Q: Which of the following is a renewable source of energy 1548 05b5cc62ce4d2b4197774b8f8
5b5cc62ce4d2b4197774b8f8- 1Natural gasfalse
- 2Coalfalse
- 3Windtrue
- 4Oilfalse
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Answer : 3. "Wind"
Explanation :
Answer: C) Wind Explanation: The energy sources that are constantly being replenished, such as sunlight, wind, and water. This means that we can use them as much as we want, and we do not have to worry about them running out. Additionally, renewable energy sources are usually much more environmentally friendly than fossil fuels. Overall, they release very few chemicals, like carbon dioxide, that can harm the environment. Most of this energy comes from fossil fuels, such as coal, oil, and natural gas. These are nonrenewable energy sources, which means that if we use them all up, we can never get more during our lifetime. Fossil fuels also contribute greatly to global climate change by releasing carbon dioxide into the air when they are burned.
Q: In what ratio must a merchant mix two varieties of oils worth Rs. 60/kg and Rs. 65/kg, so that by selling the mixture at Rs. 68.20/kg, he may gain 10% ? 1547 05b5cc6c6e4d2b4197774de5e
5b5cc6c6e4d2b4197774de5e- 12:3false
- 24:3false
- 33:4false
- 43:2true
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Answer : 4. "3:2"
Explanation :
Answer: D) 3:2 Explanation: Let he mixes the oils in the ratio = x : y Then, the cost price of the oils = 60x + 65y Given selling price = Rs. 68.20 => Selling price = 68.20(x+y) Given profit = 10% = SP - CP => 10/100 (60x + 65y) = 68.20(x+y)-(60x + 65y) => 6x + 6.5y = 8.20x + 3.20y =>2.2x = 3.3y => x : y = 3 : 2
Q: The calendar for the year 1988 is same as which upcoming year ? 1547 05b5cc6cfe4d2b4197774e2e3
5b5cc6cfe4d2b4197774e2e3- 12012false
- 22014false
- 32016true
- 42010false
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Answer : 3. "2016"
Explanation :
Answer: C) 2016 Explanation: We already know that the calendar after a leap year repeats again after 28 years. Here year 1988 is a Leap year, then the same calendar will be in the year = 1988 + 28 = 2016.
Q: Antonym of:: Amicable 1547 05b5cc6a6e4d2b4197774cdb1
5b5cc6a6e4d2b4197774cdb1- 1Hostiletrue
- 2Loveablefalse
- 3Friendlyfalse
- 4Peacefulfalse
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Answer : 1. "Hostile"
Explanation :
Answer: A) Hostile Explanation: Amicable means Friendly or in Loveable, peaceful sense. Then Antonyms for Amicable are Opposite of Friendly => Unfriendly, Hostile, Unpeaceful, etc...
Q: A rectangular lawn of dimensions 80 m x 60 m has two roads each 10 m wide running in the middle of the lawn, one parallel to the length and the other parallel to the breadth. What is the cost of traveling the two roads at Rs.3 per sq m ? 1547 05b5cc6eee4d2b4197774ef1b
5b5cc6eee4d2b4197774ef1b- 1Rs. 3600false
- 2Rs. 3800false
- 3Rs. 3900true
- 4Rs. 3700false
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Answer : 3. "Rs. 3900"
Explanation :
Answer: C) Rs. 3900 Explanation: Area = (l + b – d) d = (80 + 60 – 10)10 => 1300 sq.mts => 1300 x 3 = Rs.3900
Q: Two candidates fought in a municipality election. One of them got 54% of the total votes pooled and won by 1080 votes. What was the total number of votes polled ? 1546 05b5cc74fe4d2b4197774fb2b
5b5cc74fe4d2b4197774fb2b- 112000false
- 213500true
- 315400false
- 411000false
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Answer : 2. "13500"
Explanation :
Answer: B) 13500 Explanation: Given in municipality election 54% votes have won by 1080 Let the total number of votes be x. 54x100 - 46x100 = 1080 8x = 108000 x = 13,500 Therefore, total number of votes = 13,500.
Q: Consider the following statements P : Suman is brilliantQ : Suman is richR : Suman is honest The negation of the statement "Suman is brilliant and dishonest if and only if Suman is rich" can be expressed as 1) P∧~R↔Q 2) ~P∧R↔Q 3) Q↔P∧~R 4) ~Q↔P∧~R 1546 05b5cc71ee4d2b4197774f5d6
5b5cc71ee4d2b4197774f5d6- 11false
- 22false
- 33false
- 44true
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Answer : 4. "4"
Explanation :
Answer: D) 4 Explanation: Suman is brilliant and dishonest is P ∧~ RSuman is brilliant and dishonest iff suman is rich isQ ↔ (P ∧ ~ R) Negative of statement is expressed as~ (Q ↔(P ∧ ~ R)).