IIT JEE Practice Question and Answer

Q: Google has introduced a new app named what that allows anybody to submit stories for and about their communities? 1045 0

  • 1
    Bulletin
    Correct
    Wrong
  • 2
    Allo
    Correct
    Wrong
  • 3
    FastRead
    Correct
    Wrong
  • 4
    Google Express
    Correct
    Wrong
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Answer : 1. "Bulletin"
Explanation :

Answer: A) Bulletin Explanation:

Q: What is the smallest unit that can evolve? 1045 0

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Answer :
Explanation :

The population is the smallest unit of living organisms that can undergo evolution.

Q: The difference of two numbers is 1365. On dividing the larger number by the smaller, we get 6 as quotient and 15 as remainder. What is the smaller number  ? 1045 0

  • 1
    270
    Correct
    Wrong
  • 2
    1270
    Correct
    Wrong
  • 3
    350
    Correct
    Wrong
  • 4
    720
    Correct
    Wrong
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Answer : 1. "270"
Explanation :

Answer: A) 270 Explanation: Let the smallest number be x.Then larger number = (x + 1365)x + 1365 = 6x + 15= 5x = 1350 x = 270Smaller number = 270.

Q: What is formed by all the ecosystems of the earth? 1044 0

  • 1
    Biosphere
    Correct
    Wrong
  • 2
    Troposphere
    Correct
    Wrong
  • 3
    Stratosphere
    Correct
    Wrong
  • 4
    Ionosphere
    Correct
    Wrong
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Answer : 1. "Biosphere"
Explanation :

Answer: A) Biosphere Explanation: A biosphere is the sum of all the ecosystems established on planet Earth. An ecosystem is an area in which the plants and animals all interact to create a living environment. Therefore ecosystem is a smaller unit of earth, all ecosystems together form the earth.

Q: Can you find the next number in the sequence "0, 1, 4, 7, 8, 5, 2, 3, 6, 9, 9, 6, 3, 2, 5, 8, 7, 4, 1, 0, 0, …" ? 1044 0

  • 1
    0
    Correct
    Wrong
  • 2
    1
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    7
    Correct
    Wrong
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Answer : 2. "1"
Explanation :

Answer: B) 1 Explanation: The pattern follows the palindrome sequence. Here the digits 0 1 4 7 8 5 8 3 6 9    9 6 3 8 5 8 7 4 1 0   0 1 4 7 ... So the next digit in the sequence is 1.

Q: In 1990 a person is 15 years old. In 2000 that same person is 5 years old. How can this be possible? 1044 0

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Answer :
Explanation :

It can be possible in only B.C. i.e, Before Christ. That was about 2000 years ago. Given In 1990 B.C = 2000 + 1990 = 3990 years ago, a person is 15 years Old => In 1995 B.C = 2000 + 1995 = 3995 years ago, the same person will be 10 years Old Therefore, In 2000 B.C = 2000 + 2000 = 4000 years ago, the same person will be 5 years Old.

Q: Who is the first richest person in India? 1044 0

  • 1
    Mukesh Ambani
    Correct
    Wrong
  • 2
    Azim Premji
    Correct
    Wrong
  • 3
    Dilip Shangvi
    Correct
    Wrong
  • 4
    Lakshmi Mittal
    Correct
    Wrong
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Answer : 1. "Mukesh Ambani"
Explanation :

Answer: A) Mukesh Ambani Explanation: According to 2018 January reports, Mukesh Ambani is the first richest person in India being 18th in the world, followed by Azim Premji and S.P. Hinduja in second and third places.

Q: Two letters are randomly chosen from the word TIME. Find the probability that the letters are T and M? 1043 0

  • 1
    1/4
    Correct
    Wrong
  • 2
    1/6
    Correct
    Wrong
  • 3
    1/8
    Correct
    Wrong
  • 4
    4
    Correct
    Wrong
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Answer : 2. "1/6"
Explanation :

Answer: B) 1/6 Explanation: Required probability is given by P(E) = n(E)n(S) = 14C2 = 16

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