IIT JEE Practice Question and Answer

Q: Richest man in Asia 2018? 1878 0

  • 1
    Mukesh Ambani
    Correct
    Wrong
  • 2
    Jack Ma
    Correct
    Wrong
  • 3
    Prem Ji
    Correct
    Wrong
  • 4
    Lee
    Correct
    Wrong
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Answer : 1. "Mukesh Ambani"
Explanation :

Answer: A) Mukesh Ambani Explanation: Indian business magnate Mukesh Ambani topples Jack Ma as Asia’s richest person as he positions Reliance Industries to disrupt the e-commerce space in India.   The chairman of India’s refining-to-telecoms conglomerate, Ambani was estimated to be worth US$44.3 billion in July 2018 with the share price of Reliance Industries rising 1.6 per cent to a record 1,099.8 rupees (US$16.05), according to Bloomberg Billionaires Index.   Jack Ma’s wealth stood at US$44 billion at the close of trading on the sameday in the US, where the company is listed.

Q: With similar triangles the corresponding angles are equal. 1877 0

  • 1
    TRUE
    Correct
    Wrong
  • 2
    FALSE Answer & Explanation Answer:
    Correct
    Wrong
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Answer : 1. "TRUE"
Explanation :

Answer: A) TRUE Explanation: The given statement about similar triangles is TRUE.   Similar Triangles Theorem :: Similar triangles are two triangles with corresponding angles of equal measure, and the ratios of their corresponding sides' lengths are equal.

Q: How many blocks in a mile? 1877 0

  • 1
    8 - 12
    Correct
    Wrong
  • 2
    12 - 15
    Correct
    Wrong
  • 3
    8 - 15
    Correct
    Wrong
  • 4
    15 - 20
    Correct
    Wrong
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Answer : 4. "15 - 20"
Explanation :

Answer: D) 15 - 20 Explanation: About 15 - 20 blocks become a 1 mile. City blocks differ in sizes. They do not have a standard measurement. Every geographical area has its own average city block size. A city block is a rectangular area in a city with several buildings with the streets around. It is also called "block" which, in a dictionary, is defined as an informal unit of distance from one intersection to the next.

Q: 12% of 70,000 is 1877 0

  • 1
    8400
    Correct
    Wrong
  • 2
    7200
    Correct
    Wrong
  • 3
    6000
    Correct
    Wrong
  • 4
    5600
    Correct
    Wrong
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Answer : 1. "8400"
Explanation :

Answer: A) 8400 Explanation: 12% of 70,000 => 12 x 70,000/100 => 8400   Hence, 12% of 70,000 = 8,400

Q: Which of the following is not a compound? 1877 0

  • 1
    Brass
    Correct
    Wrong
  • 2
    Quick lime
    Correct
    Wrong
  • 3
    Marble
    Correct
    Wrong
  • 4
    Soda ash
    Correct
    Wrong
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Answer : 1. "Brass"
Explanation :

Answer: A) Brass Explanation: Among the given options Brass is not a compound. Since it is an alloy, it is a mixture.    The smallest part of a compound is called a molecule. It has a unique composition that is always the same. Compound is a substance that consists of two or more elements.

Q: The Bhindawas Bird Sanctuary (BBS) is located in which state  ? 1876 0

  • 1
    Madhya Pradesh
    Correct
    Wrong
  • 2
    Bihar
    Correct
    Wrong
  • 3
    Odisha
    Correct
    Wrong
  • 4
    Haryana
    Correct
    Wrong
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Answer : 4. "Haryana"
Explanation :

Answer: D) Haryana Explanation: The Bhindawas Bird Sanctuary (BBS) is located in Jhajjar district, Haryana. It is home to many birds such as Blue Peafowl, Gray Francolin, Black Francolin, Shikra, Black Kite, Greater Coucal, White-throated Kingfisher, Coppersmith Barbet and Indian Roller. It is in news because the sanctuary will soon be developed as a beautiful tourist resort and the additional facilities to be provided to the tourists coming to this place would include arrangements for camping for night stay, beautification of the lake, and opening of dispensary for birds and the wild life.

Q: Which Indian city is named after the snake Anantha of Lord Vishnu? 1876 0

  • 1
    Trivandrum
    Correct
    Wrong
  • 2
    Tiruchirappalli
    Correct
    Wrong
  • 3
    Tanjavore
    Correct
    Wrong
  • 4
    Vellore
    Correct
    Wrong
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Answer : 1. "Trivandrum"
Explanation :

Answer: A) Trivandrum Explanation: Thiruvananthapuram also known as Trivandrum, is the capital and the largest city of the Indian state of Kerala is named after the snake Anantha of Lord Vishnu.

Q: Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 1875 0

  • 1
    Rs. 3845
    Correct
    Wrong
  • 2
    Rs. 4826
    Correct
    Wrong
  • 3
    Rs. 5142
    Correct
    Wrong
  • 4
    Rs. 4415
    Correct
    Wrong
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Answer : 2. "Rs. 4826"
Explanation :

Answer: B) Rs. 4826 Explanation: We know the formula for calculating The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time Here P = 5000, r1 = 10, r2 = 20 Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625 C = Rs. 4826.

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