IIT JEE Practice Question and Answer

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Answer : 1. "Rs. 9500"
Explanation :

Answer: A) Rs. 9500 Explanation: Given initial investments ratio = 2 : 3 : 4 At the end of 6 months, A invested an amount such that his total capital became equal to B's initial capital investment i.e, upto 6 months A's investment is 2 and after 6 months his invstment is 3 = B's investment Now, Ratio of investment for one year => A : B : C = (2×6 + 3×6) : (3×12) : (4×12) = 30 : 36 : 48 = 5 : 6 : 8 But given B's profit = 3000 => 6 ratio = 3000 For total => 19 ratio = Rs. 9500.

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Answer : 1. "Both a and b follows"
Explanation :

Answer: A) Both a and b follows Explanation: The police ought to find out the lackenings in existing security arrangements and make up for these inadequacies to strengthen security and thus prevent criminal activities in the forthcoming festival. So, both a and b follow. Arresting the known criminals does not ensure safety, for a novice can also indulge in crime. So, c does not follow.

Q: The term "simple carbohydrates" refers to 1652 0

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    polysaccharides
    Correct
    Wrong
  • 2
    monosaccharides and disaccharides
    Correct
    Wrong
  • 3
    starch and glycogen
    Correct
    Wrong
  • 4
    dietary fiber
    Correct
    Wrong
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Answer : 2. "monosaccharides and disaccharides"
Explanation :

Answer: B) monosaccharides and disaccharides Explanation: Simple carbohydrates are also called as Simple sugars. Monosaccharides and Disaccharides refers to simple carbohydrates.

Q: Tetraethyl lead is used as 1652 0

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    Fire extinguisher
    Correct
    Wrong
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    Gasoline additive
    Correct
    Wrong
  • 3
    Mosquito repellent
    Correct
    Wrong
  • 4
    Pain killer
    Correct
    Wrong
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Answer : 2. "Gasoline additive"
Explanation :

Answer: B) Gasoline additive Explanation: Tetraethyl lead is a highly toxic compound used as a gasoline additive. Tetraethyl lead abbreviated as TEL, is an organo lead compound with the formula (CH3CH2)4Pb. It is a petro-fuel additive which in turn caused increased vehicle performance. This is also used as an antiknock agent in gasoline and jet fuels. Tetraethyl lead is absorbed rapidly by the skin, the lungs, and the gastrointestinal tract. It is converted to triethyl lead, which might be responsible for its toxicity.

Q: Find the wrong number in the given series :26, 20, 16, 11, 8, 6, 5 1651 0

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    5
    Correct
    Wrong
  • 2
    26
    Correct
    Wrong
  • 3
    11
    Correct
    Wrong
  • 4
    16
    Correct
    Wrong
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Answer : 4. "16"
Explanation :

Answer: D) 16 Explanation: 26 - 6 = 20 20 - 5 = 15 15 - 4 = 11 11 - 3 = 8 8 - 2 = 6 6 - 1 = 5 Therefore, 16 is wrong number.

Q: If three eighth of a number is 141. What will be the approximately value of 32.08% of this number ? 1651 0

  • 1
    101
    Correct
    Wrong
  • 2
    112
    Correct
    Wrong
  • 3
    104
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 4. "120"
Explanation :

Answer: D) 120 Explanation: K x 3/8 = 141 => K = 376 376 x 32.08/100 = 120

Q: How many medals has been bagged by Indian athletes at World Dwarf Games 2017 ? 1650 0

  • 1
    34
    Correct
    Wrong
  • 2
    37
    Correct
    Wrong
  • 3
    39
    Correct
    Wrong
  • 4
    40
    Correct
    Wrong
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Answer : 2. "37"
Explanation :

Answer: B) 37 Explanation:

Q: Who did not have an important role in the Swadeshi Movement ? 1650 0

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    Muslims
    Correct
    Wrong
  • 2
    Students
    Correct
    Wrong
  • 3
    Women
    Correct
    Wrong
  • 4
    Peasants
    Correct
    Wrong
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Answer : 4. "Peasants"
Explanation :

Answer: D) Peasants Explanation:

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