IIT JEE प्रश्न और उत्तर का अभ्यास करें

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

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    0.625
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  • 2
    0.541
    सही
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  • 3
    0.258
    सही
    गलत
  • 4
    0.147
    सही
    गलत
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उत्तर : 1. "0.625"
व्याख्या :

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.

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

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    Tuberculosis
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    Paralysis
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    Plague
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    गलत
  • 4
    Cholera
    सही
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उत्तर : 1. "Tuberculosis"
व्याख्या :

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.

प्र: What Animals are Warm Blooded? 1453 0

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    Reptiles
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    Insects
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    Amphibians
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    Birds
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उत्तर : 4. "Birds"
व्याख्या :

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).

प्र: How Many Hours Is 100 Miles? 1454 0

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उत्तर :
व्याख्या :

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.

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

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    11/379
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    गलत
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    21/628
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  • 3
    24/625
    सही
    गलत
  • 4
    26/247
    सही
    गलत
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उत्तर : 3. "24/625"
व्याख्या :

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

प्र: Vikram Sarabhai Space Centre is located at 1570 0

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    Thiruvananthapuram
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    Pune
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    Sriharikota
    सही
    गलत
  • 4
    Ahmedabad
    सही
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उत्तर : 1. "Thiruvananthapuram"
व्याख्या :

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.

प्र: Ecology Deals With 1615 0

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    Environment
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    Birds
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    Organisms and their Environment
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    Living beings
    सही
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उत्तर : 3. "Organisms and their Environment"
व्याख्या :

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.)

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

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    91
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    35
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    47
    सही
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    69
    सही
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उत्तर : 3. "47"
व्याख्या :

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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