IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: Read the arrangement carefully and give the answer of following questions ? K$23DBE8HM4@5JF4%K1+WR#AA*415 How many such symbols are there which is not immediately preceded by a letter but immediately followed by a number ? 3701 0

  • 1
    1
    सही
    गलत
  • 2
    2
    सही
    गलत
  • 3
    3
    सही
    गलत
  • 4
    0
    सही
    गलत
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उत्तर : 1. "1"
व्याख्या :

Answer: A) 1 Explanation: Only one such symbol is there in the given arrangement. It is 4@5.

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उत्तर : 4. "E = 4 & Y = 2"
व्याख्या :

Answer: D) E = 4 & Y = 2 Explanation: Let the the age of the elder boy = E   Let the the age of the younger boy = Y   Given that Y = cube root of EY   => Y3 = EY => E = Y2 .....(1)By the condition of number replacement the age of the father is YE   The Mother's age = EY/2   But she is 3 years less than father => EY/2 + 3 = YE2YE = EY + 6 ......(2)   Then now from the given options we can identify which satisfies the all the conditions.   Here Y =2 and E = 4 satisfies all the conditions.

प्र: Find out which part of a sentence has an error and mark the answer corresponding to the appropriate letter (A, B, C). If a sentence is free from errors, mark (D) as the answer. He flew( 3693 0

  • 1
    / over extensively(
    सही
    गलत
  • 2
    C). If a sentence is free from errors, mark (D) as the answer. He flew(A) / over extensively(B)
    सही
    गलत
  • 3
    . If a sentence is free from errors, mark (
    सही
    गलत
  • 4
    as the answer. He flew(A) / over extensively(B) / the pacific last winter(C) / No error(D)
    सही
    गलत
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उत्तर : 2. "C). If a sentence is free from errors, mark (D) as the answer. He flew(A) / over extensively(B)"
व्याख्या :

Answer: B) B Explanation: 'Extensively' is describing the verb 'flew' and should be placed after the verb and thus the correct phrase should be 'extensively over'. The error is in the second part of the sentence.

प्र: What word in the English language is always spelled incorrectly? 3686 0

  • 1
    Schezwan
    सही
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  • 2
    Yorker
    सही
    गलत
  • 3
    Incorrectly
    सही
    गलत
  • 4
    Psycologically
    सही
    गलत
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उत्तर : 3. "Incorrectly"
व्याख्या :

Answer: C) Incorrectly Explanation: INCORRECTLY is the only English word which is always spelled incorrectly.

प्र: If there are 150 questions in a 3 hr examination. Among these questions 50 are type A problems, which requires twice as much as time be spent on the rest of the type B problems. How many minutes should be spent on type A problems ? 3682 0

  • 1
    75 min
    सही
    गलत
  • 2
    82 min
    सही
    गलत
  • 3
    90 min
    सही
    गलत
  • 4
    101 min
    सही
    गलत
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उत्तर : 3. "90 min"
व्याख्या :

Answer: C) 90 min Explanation: Let X = Time taken for each of Type B Problems(100 Problems)And 2X = Time taken for each of Type A problems(50 problems) Total time period = 3hrs = 3 x 60min = 180 minutes 100X + 50(2X) = 180100X + 100X = 180200X = 180 min X = 180/200X = 0.90 min By convertiing into seconds, X = 0.90 x 60 secondsX = 54 sec So, time taken for Part A problems is = 54 x 2 x 50 = 5400 seconds= 5400/60sec = 90 minutes.

प्र: Which of the following is the primary purpose of the DSM? 3663 0

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    Understanding the causes of mental disorders
    सही
    गलत
  • 2
    Placement of mental disorders in appropriate cultural context
    सही
    गलत
  • 3
    Diagnosis of mental disorders
    सही
    गलत
  • 4
    Selection of appropriate psychological therapies for mental disorders
    सही
    गलत
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उत्तर : 3. "Diagnosis of mental disorders"
व्याख्या :

Answer: C) Diagnosis of mental disorders Explanation: The DSM is the Diagnostic and Statistical Manual of Mental Disorders; it is currently in its fifth edition. The DSM is published by the APA, American Psychiatric Association. It is a crucial resource in the fields of psychology and psychiatry.

प्र: The day before yesterday, I was 25 years old, and next year I will turn 28. How is it possible? 3658 0

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उत्तर :
व्याख्या :

On carefully inspecting this question, one can understand that there are two days which are important and these are: A. My Birthday. B. The day when I am making this statement. If you think for a while, you will understand that such statements can be made only around the year’s end. So, if my birthday is on 31 December, then I will be making this statement on 1 January. I will further explain using the following example: 1. Consider that today is 01 January 2017. 2. Then, the day before yesterday was 30 December 2016 and according to the question I was 25 then. 3. Yesterday was 31 December 2016, which happens to be my birthday too (Woohoo!), and my age increases by one to become 26. 4. I will turn 27 on my birthday this year (31 December 2017). 5. I will turn 28 on my birthday next year (31 December 2018). Now, if you read the question again, it will make more sense:   The day before yesterday(30 December 2016), I was 25 years old and next year(31 December 2018) I will be 28.

प्र: Smallest Taluk in Kerala State? 3656 0

  • 1
    Kunnathur
    सही
    गलत
  • 2
    Eranad
    सही
    गलत
  • 3
    Palakkad
    सही
    गलत
  • 4
    Alappuzha
    सही
    गलत
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उत्तर : 1. "Kunnathur"
व्याख्या :

Answer: A) Kunnathur Explanation: Kunnathur is the Smallest Taluk in Kerala State.   Taluk : In Kerala, the administrative divisions below the district are called Taluk. There are 77 Taluks in Kerala State. Eranad is the Largest Taluk in Kerala State. Palakkad is the Largest District in Kerala State. Alappuzha is the Smallest District in Kerala State.

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