IIT JEE Practice Question and Answer

Q: 5/8 as a Decimal Equals To 1525 0

  • 1
    0.625
    Correct
    Wrong
  • 2
    0.541
    Correct
    Wrong
  • 3
    0.258
    Correct
    Wrong
  • 4
    0.147
    Correct
    Wrong
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Answer : 1. "0.625"
Explanation :

Answer: A) 0.625 Explanation: 5/8 is Nothing but to divide 5 into 8 parts.     As 5 is smaller than 8, the quotient starts with a decimal point to make 5 as 50 to be divisible by 8. (0.)     Now 50 goes for 6 times in 8 leaving a remainder 2. (0.6)      Again 2 is smaller than 8, As it already has decimal point in the quotient, now 2 becomes 20.      Now 20 goes for 2 times in 8 leaving a remainder 4. (0.62)      Again 4 is smaller than 8, As it already has decimal point in the quotient, now 4 becomes 40.     Now 40 goes for 5 times in 8 leaving a remainder 0. (0.625)     Therefore, the decimal value of 58 is 0.625.   Now find a decimal value of 1117 and Discuss your at Discuss.

Q: What is consumption disease in the 19th century? 1168 0

  • 1
    Tuberculosis
    Correct
    Wrong
  • 2
    Paralysis
    Correct
    Wrong
  • 3
    Plague
    Correct
    Wrong
  • 4
    Cholera
    Correct
    Wrong
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Answer : 1. "Tuberculosis"
Explanation :

Answer: A) Tuberculosis Explanation: Tuberculosis (TB) was the leading cause of death in the United States and one of the most feared diseases in the world during the 19th and early 20th centuries. Formerly known as Consumption diseases because many types of lung diseases were lumped under the term 'consumption'. Lung cancer and bronchitis were examples.

Q: What Animals are Warm Blooded? 1453 0

  • 1
    Reptiles
    Correct
    Wrong
  • 2
    Insects
    Correct
    Wrong
  • 3
    Amphibians
    Correct
    Wrong
  • 4
    Birds
    Correct
    Wrong
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Answer : 4. "Birds"
Explanation :

Answer: D) Birds Explanation: Mammals and Birds are Warm-blooded Animals. Warm-blooded animals have body temperatures that usually stay the same Whether it is sunny and hot outside or there is a snowstorm.They are able to regulate their body temperature which changes with temperature of environment.   Warm Blooded Animals :: Apes, Monkeys, Whales, Elephants, Cheetahs, Giraffes, Pets, Felines, Pigs and Humans(all other live birth bearing creatures that nurse their young)..   Cold Blooded Animals :: All Reptiles, Amphibians, Fish as well as Insects (Bugs).

Q: How Many Hours Is 100 Miles? 1454 0

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Answer :
Explanation :

It depends on the speed with what you are travelling.   For example, if you have travelled 100 miles and it took 2.5 hours to do it, then that is 100 miles = 2.5 hrs for you. And the Average Speed is given by 100/2.5 = 40 miles per 1hour.

Q: 14 persons are seated around a circular table. Find the probability that 3 particular persons always seated together. 1921 0

  • 1
    11/379
    Correct
    Wrong
  • 2
    21/628
    Correct
    Wrong
  • 3
    24/625
    Correct
    Wrong
  • 4
    26/247
    Correct
    Wrong
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Answer : 3. "24/625"
Explanation :

Answer: C) 24/625 Explanation: Total no of ways = (14 – 1)! = 13! Number of favorable ways = (12 – 1)! = 11!   So, required probability = 11!×3!13! = 39916800×66227020800 = 24625

Q: Vikram Sarabhai Space Centre is located at 1570 0

  • 1
    Thiruvananthapuram
    Correct
    Wrong
  • 2
    Pune
    Correct
    Wrong
  • 3
    Sriharikota
    Correct
    Wrong
  • 4
    Ahmedabad
    Correct
    Wrong
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Answer : 1. "Thiruvananthapuram"
Explanation :

Answer: A) Thiruvananthapuram Explanation: Vikram Sarabhai Space Centre is located at Thiruvananthapuram, Kerala.   This is the lead centre of ISRO responsible for the design and development of launch vehicle technology focusing on rocket and space vehicles for India's satellite programme.

Q: Ecology Deals With 1615 0

  • 1
    Environment
    Correct
    Wrong
  • 2
    Birds
    Correct
    Wrong
  • 3
    Organisms and their Environment
    Correct
    Wrong
  • 4
    Living beings
    Correct
    Wrong
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Answer : 3. "Organisms and their Environment"
Explanation :

Answer: C) Organisms and their Environment Explanation: Ecology is the branch of science which deals with the study of Ecosystem (relation between the Organisms and their Environment.)

Q: Find the next number in the series   143 143 136 110 ? 3128 0

  • 1
    91
    Correct
    Wrong
  • 2
    35
    Correct
    Wrong
  • 3
    47
    Correct
    Wrong
  • 4
    69
    Correct
    Wrong
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Answer : 3. "47"
Explanation :

Answer: C) 47 Explanation: The next number in the series is 143 143 136 110       0    7      26 (Differences)  13 - 1 , 23 - 1, 33 - 1, 43 - 1,...Now the next number is given by110 - (43 - 1) = 110 - 63 = 47.

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