IIT JEE Practice Question and Answer

Q: In the following number series only one number is wrong. Find out the wrong number ? 6, 15, 35, 63, 143, 221, 323 1864 0

  • 1
    143
    Correct
    Wrong
  • 2
    63
    Correct
    Wrong
  • 3
    323
    Correct
    Wrong
  • 4
    35
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "63"
Explanation :

Answer: B) 63 Explanation: Here the series follows the pattern that, product of succesive prime numbers i.e,  2 × 3 = 6  3 × 5 = 15  5 × 7 = 35  7 × 11 = 77  11 × 13 = 143  13 × 17 = 221  17 × 19 = 323 So here in place of 77 the number 63 is written. So the wrong number is 63.

Q: Crack the Logical #MathPuzzle? 1864 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

From given data, Rs. 1 = 40 strawberries => Rs. 2 = 80 strawberries Rs. 5  = 1 apple => Rs. 95 = 19 apple. Rs. 3 = 1 mango => Rs. 3 = 1, mango Now, Total So 100 Rs = 100 Fruits.

Q: An Engine length 1000 m moving at 10 m/s. A bird is flying from engine to end with 'x' m/s and coming back at '2x' m/s. Take total time of bird travelling as 187.5 s. Find x and 2x in km/hr ? 1864 0

  • 1
    21.4 and 42.8
    Correct
    Wrong
  • 2
    25.2 and 50.4
    Correct
    Wrong
  • 3
    31.4208 and 62.8416
    Correct
    Wrong
  • 4
    33.12 and 66.24
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "31.4208 and 62.8416"
Explanation :

Answer: C) 31.4208 and 62.8416 Explanation: Birds speeds in mtrs/sec is 'x' and '2x' .While flying from Engine to end, relative speed = (x+10) m/secfrom end to engine, flying speed = (2x - 10) mtr/secso 1000/(x+10) + 1000/(2x-10) = 187.5 secssolving it, we getso x = 8.728 m/sec and 2x= 17.456 m/sec x = 31.4208 km/hr and 2x = 62.8416 km/hr.

Q: The most healthy edible oil for heart is 1864 0

  • 1
    Almond Oil
    Correct
    Wrong
  • 2
    Sesame Oil
    Correct
    Wrong
  • 3
    Mustard Oil
    Correct
    Wrong
  • 4
    Olive Oil
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "Olive Oil"
Explanation :

Answer: D) Olive Oil Explanation:

Q: On BBC World News channel last night they showed an informative program about new innovations in medical imaging, which you would have found interesting. 1863 0

  • 1
    there was an informative program about innovations in medical imaging, a program you would have found interesting.
    Correct
    Wrong
  • 2
    they showed an informative program about innovations in medical imaging, which you would have found interesting.
    Correct
    Wrong
  • 3
    there was an informative program about new innovations in medical imaging, that you would have found interesting.
    Correct
    Wrong
  • 4
    they showed an informative program about new innovations in medical imaging, which you would have found interesting.
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "there was an informative program about innovations in medical imaging, a program you would have found interesting."
Explanation :

Answer: A) there was an informative program about innovations in medical imaging, a program you would have found interesting. Explanation: They is incorrect when talking of the television channel. New is redundant. And which must have a clear antecedent.   Hence, Only Option A satisfies and clears all the flaws in the given sentence.

Q: Name the state assembly, which has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. 1862 0

  • 1
    Rajasthan Assembly
    Correct
    Wrong
  • 2
    Uttar Pradesh Assembly
    Correct
    Wrong
  • 3
    Maharashtra Assembly
    Correct
    Wrong
  • 4
    Bihar Assembly
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Rajasthan Assembly"
Explanation :

Answer: A) Rajasthan Assembly Explanation: Rajasthan assembly has passed an amendment bill awarding death penalty for convicts involved in the rape of girls below 12 years of age. State Home Minister Gulab Chand Kataria introduced 'The Criminal Laws (Rajasthan Amendment) Bill, 2018' in the assembly, which was passed in the House by a voice vote following a debate.

Q: Total Output is a synonym for 1862 0

  • 1
    aggregate demand
    Correct
    Wrong
  • 2
    gross domestic product
    Correct
    Wrong
  • 3
    aggregate supply
    Correct
    Wrong
  • 4
    equilibrium
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "aggregate supply"
Explanation :

Answer: C) aggregate supply Explanation: Total Output is a synonym for Aggregate supply or Initial production.

Q: How many Enzymes are there in the Human Body? 1862 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

There are nearly about 75000 enzymes of 3 classes are there in the human body. They are : 1. Metabolic Enzymes - Enzymes that help to run our Bodies 2. Digestive Enzymes - Enzymes that help in digesting Food 3. Food Enzymes - Enzymes from raw foods that start our Food digestion.

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully