IIT JEE Practice Question and Answer

Q: What is the equivalent compound ratio of 5:6::7:10::6:5  ? 2004 0

  • 1
    7 : 9
    Correct
    Wrong
  • 2
    9 : 7
    Correct
    Wrong
  • 3
    7 : 4
    Correct
    Wrong
  • 4
    7 : 10
    Correct
    Wrong
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Answer : 4. "7 : 10"
Explanation :

Answer: D) 7 : 10 Explanation: Given 5:6 :: 7:10 :: 6:5 We know that compound ratio is calculated as a:b :: c:d :: e:f(axcxe):(bxdxf) => (5x7x6):(6x10x5)=> (210):(300)= 7:10

Q: World’s highest railway bridge will be constructed on which river  ? 1301 0

  • 1
    Ganga
    Correct
    Wrong
  • 2
    Chenab
    Correct
    Wrong
  • 3
    Yamuna
    Correct
    Wrong
  • 4
    Kaveri
    Correct
    Wrong
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Answer : 2. "Chenab"
Explanation :

Answer: B) Chenab Explanation: Chenab River in Jammu & Kashmir in next 2 years. Its height is 359 mts i.e 35mts more than the height of Eiffel Tower.

Q: Cancer is caused by 1825 0

  • 1
    Loss of immunity of cells
    Correct
    Wrong
  • 2
    Uncontrolled meiosis
    Correct
    Wrong
  • 3
    Uncontrolled mitosis
    Correct
    Wrong
  • 4
    Rupturing of cells
    Correct
    Wrong
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Answer : 3. "Uncontrolled mitosis"
Explanation :

Answer: C) Uncontrolled mitosis Explanation:

Q: Who is the father of Tissue Culture ? 2787 2

  • 1
    Gautheret
    Correct
    Wrong
  • 2
    Haberlandt
    Correct
    Wrong
  • 3
    Bonner
    Correct
    Wrong
  • 4
    Laibach
    Correct
    Wrong
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Answer : 2. "Haberlandt"
Explanation :

Answer: B) Haberlandt Explanation:

Q: L is the daughter of K's brother's wife's father-in-law's daughter. K is L's __ 2493 0

  • 1
    Son
    Correct
    Wrong
  • 2
    Aunt
    Correct
    Wrong
  • 3
    Uncle
    Correct
    Wrong
  • 4
    Can't be determined
    Correct
    Wrong
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Answer : 4. "Can't be determined"
Explanation :

Answer: D) Can't be determined Explanation: K's brother's wife's father-in-law is K's brother's father i.e. K's father. K's father's daughter is K's Sister.L is daughter of K's sister => K is L's Uncle or Aunt.

Q: How is my father's mother's only daughter-in-law's daughter's father related to me ? 1584 0

  • 1
    Son-in-law
    Correct
    Wrong
  • 2
    Uncle
    Correct
    Wrong
  • 3
    Son
    Correct
    Wrong
  • 4
    Father
    Correct
    Wrong
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Answer : 4. "Father"
Explanation :

Answer: D) Father Explanation: My fahter's mother's only daughter-in-law is my father's wife i.e. my mother. My mother's daughter is my sister. My sister's father is my father.

Q: In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples ? 7001 0

  • 1
    6/7
    Correct
    Wrong
  • 2
    19/21
    Correct
    Wrong
  • 3
    7/31
    Correct
    Wrong
  • 4
    5/21
    Correct
    Wrong
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Answer : 4. "5/21"
Explanation :

Answer: D) 5/21 Explanation: Number of ways of (selecting at least two couples among five people selected) = (⁵C₂ x ⁶C₁) As remaining person can be any one among three couples left. Required probability = (⁵C₂ x ⁶C₁)/¹⁰C₅= (10 x 6)/252 = 5/21

Q: Find the simple interest on Rs.600 for 11 months at 5 paisa per month ? 1567 0

  • 1
    Rs. 30
    Correct
    Wrong
  • 2
    Rs. 3.30
    Correct
    Wrong
  • 3
    Rs. 33
    Correct
    Wrong
  • 4
    Rs. 330
    Correct
    Wrong
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Answer : 2. "Rs. 3.30"
Explanation :

Answer: B) Rs. 3.30 Explanation: I = (600x11x5)/100 = 330 Paise = Rs. 3.30

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