IIT JEE Practice Question and Answer

Q: Find the odd one out of the following words ? 1775 0

  • 1
    cruise
    Correct
    Wrong
  • 2
    crusade
    Correct
    Wrong
  • 3
    expedition
    Correct
    Wrong
  • 4
    campaign
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "cruise"
Explanation :

Answer: A) cruise Explanation: Cruise = a sea voyage for pleasure. All other words are related to ‘journey on land, sea with an aim’.

Q: Kargil Fight held in 1775 0

  • 1
    1979
    Correct
    Wrong
  • 2
    1989
    Correct
    Wrong
  • 3
    1999
    Correct
    Wrong
  • 4
    1969
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "1999"
Explanation :

Answer: C) 1999 Explanation: The Kargil War, also known as the Kargil conflict, was an armed conflict between India and Pakistan that took place between May and July 1999 in the Kargil district of Kashmir and elsewhere along the Line of Control (LOC). In India, the conflict is also referred to as Operation Vijay.

Q: Find the sum of the Arithmetic Series upto 36 terms 2, 5, 8, 11,... 1775 1

  • 1
    3924
    Correct
    Wrong
  • 2
    1962
    Correct
    Wrong
  • 3
    1684
    Correct
    Wrong
  • 4
    1452
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "1962"
Explanation :

Answer: B) 1962 Explanation: Arithmetic Series ::   An Arithmetic Series is a series of numbers in which each term increases by a constant amount.   How to find the sum of the Arithmetic Sequence or Series for the given Series ::   When the series contains a large amount of numbers, its impractical to add manually. You can quickly find the sum of any arithmetic sequence by multiplying the average of the first and last term by the number of terms in the sequence.   That is given by Sn = n(a1 + an)2 Where n = number of terms, a1 = first term, an = last term   Here Last term is given by an = a1 + n-1d where d = common difference   Now given Arithmetic Series is    2, 5, 8, 11,...   Here a1 = 2,  d = 3, n = 36    Now, an= a1 + n - 1d a36= 2 + 36 - 13 = 105 + 2 = 107    Now, Sum to 36 terms is given by   S36 = 36(2 + 107)2 = 36 x 1092 = 39242 = 1962       Therefore, Sum to 36 terms of the series 2, 5, 8, 11,... is 1962.

Q: Ajay and his wife Reshmi appear in an interview for two vaccancies in the same post. The Probability of Ajay's selection is 1/7 and that of his wife Reshmi's selection is 1/5. What is the probability that only one of them will be selected? 1774 0

  • 1
    5/7
    Correct
    Wrong
  • 2
    1/5
    Correct
    Wrong
  • 3
    2/7
    Correct
    Wrong
  • 4
    2/35
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "2/7"
Explanation :

Answer: C) 2/7 Explanation: P( only one of them will be selected) = p[(E and not F) or (F and not E)]   = PE∩F∪F∩E    = PEPF+PFPE    =17×45+15×67=27

Q: How old are you if you are born in 1995? 1774 0

  • 1
    22
    Correct
    Wrong
  • 2
    23
    Correct
    Wrong
  • 3
    24
    Correct
    Wrong
  • 4
    25
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "23"
Explanation :

Answer: B) 23 Explanation: Calculating Age has 2 conditions. Let your Birthday is on January 1st. 1. If the month in which you are born is completed in the present year i.e, your birthday, then Your Age = Present year - Year you are born  As of now, present year = 2018 i.e, Age = 2018 - 1995 = 23 years.   2. If the month in which you are born is not completed in the present year i.e, your birthday, then Your Age = Last year - Year you are born As of now, present year = 2018 i.e, Age = 2017 - 1995 = 22 years.

Q: 2/3 as a decimal 1774 0

  • 1
    0.47
    Correct
    Wrong
  • 2
    6.77
    Correct
    Wrong
  • 3
    0.67
    Correct
    Wrong
  • 4
    0.07
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "0.67"
Explanation :

Answer: C) 0.67 Explanation: To convert a fraction into decimal, just take the number on top which we called the numerator and divide it by the number at the bottom which we called the denominator. 2/3 How it comes : 2 ÷ 3 = 0 bring down the decimal point. 20 ÷ 3 = 6 and carry the remainder 2 to make 20 20 ÷ 3 = 6 and carry the remainder 2 to make 20 20 ÷ 3 = 6 and carry the remainder 2 to make 20 etc... This gives the recurring decimal 0.6666... If we round off to two decimals , then it becomes 0.67.   Hence, decimal fraction of 2/3 = 0.67.

Q: 90 D in RA? 1774 0

  • Show AnswerHide Answer
  • Workspace

Answer :
Explanation :

90 D in RA means 90 Degrees in Right Angle. It is a logic question which is to be eloborated.   Some more of its kind are: 1. 52 W in a Y     -    52 Weeks in a Year 2. 7 C in a R        -    7 Colours in a Rainbow 3. 9 P in SS 4. 5 C in an OF 5. 12 S of the Z

      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