IIT JEE Practice Question and Answer

Q: Both skin and lung cancer are classified as carcinomas. 2131 0

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

Answer: A) TRUE Explanation: Carcinomas are cancers that begin in tissues lining the inner or outer surfaces of the body where the DNA of the cells become damaged. Lung cancer and one type of skin cancer (squamous-cell carcinoma) are carcinomas.   Hence, the given statement is TRUE.

Q: Which is the smallest district of India by size ? 2129 0

  • 1
    Mahe
    Correct
    Wrong
  • 2
    Zila
    Correct
    Wrong
  • 3
    Kaushambi
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "Mahe"
Explanation :

Answer: A) Mahe Explanation: Mahe is the smallest district of India in size which is in Puducherry.

Q: Express 6.72 % in ratio ? 2129 0

  • 1
    65 : 124
    Correct
    Wrong
  • 2
    42 : 625
    Correct
    Wrong
  • 3
    21 : 125
    Correct
    Wrong
  • 4
    37 : 442
    Correct
    Wrong
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Answer : 2. "42 : 625"
Explanation :

Answer: B) 42 : 625 Explanation: 6.72/100 = 672/10000 = 42/625

Q: DNA can be found in what Organelles? 2128 0

  • 1
    Chloroplasts and Mitichondria
    Correct
    Wrong
  • 2
    Nucleus and Ribosomes
    Correct
    Wrong
  • 3
    Ribosomes and Mitochondria
    Correct
    Wrong
  • 4
    Endoplasmic Reticulum and Nucleus
    Correct
    Wrong
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Answer : 1. "Chloroplasts and Mitichondria"
Explanation :

Answer: A) Chloroplasts and Mitichondria Explanation: DNA can be found in 3 Organelles namely Nucleus, Mitochondria in animals and Chloroplasts in plants.

Q: Find the correct sentence from the following options ? 2126 0

  • 1
    The dacoits having stopped to divide the booty, the police had overtaken them
    Correct
    Wrong
  • 2
    The dacoits being stopped to divide the booty, the police overtook them.
    Correct
    Wrong
  • 3
    The dacoits having been stopped for dividing the booty, the police overtook them
    Correct
    Wrong
  • 4
    The dacoits having stopped for dividing the booty, the police overtook them
    Correct
    Wrong
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Answer : 4. "The dacoits having stopped for dividing the booty, the police overtook them"
Explanation :

Answer: D) The dacoits having stopped for dividing the booty, the police overtook them Explanation: As it is the past continuous sentence.

Q: In a class there are certain no. of boys and girls. If 15 girls are absent then no. of boys will be twice that of girls. If 45 boys are absent then girls strength will be 5 times that of boys. Find number of boys actually present ? 2124 0

  • 1
    40
    Correct
    Wrong
  • 2
    50
    Correct
    Wrong
  • 3
    55
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
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Answer : 2. "50"
Explanation :

Answer: B) 50 Explanation: 15 girls are absent => b = 2(g-15)...... eqn...(1) 45 boys are absent => g - 15 = 5(b-45).....eqn...(2) => g = 5(b-45) + 15 => b = 2((5(b-45)+15)-15) => b = 2(5b - 225 + 15 - 15) => b = 2(5b-225) => b = 10b - 450 => 9b = 450 => b = 50 so from equation(2) g - 15 = 5(b - 45) => g - 15 = 5(50-45) => g - 15 = 5(5) => g = 25 + 15 => g = 40 Therefore, the number of boys = 50 and girls = 40

Q: The missing number in the Series 114, 131, 165, 216,  ?, 369 2123 0

  • 1
    314
    Correct
    Wrong
  • 2
    304
    Correct
    Wrong
  • 3
    294
    Correct
    Wrong
  • 4
    284
    Correct
    Wrong
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Answer : 4. "284"
Explanation :

Answer: D) 284 Explanation: 114       131     165     216     ?      369    +17      +34     +51     +68    +85   => The missing number in the given Number series = 216 + 68 = 284.

Q: One boat is overtaking another, which boat should stand on? 2123 0

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Answer :
Explanation :

The boat which is overtaken must give way to the boat which is overtaking and should stand on until it is completely overtaken.

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