IIT JEE Practice Question and Answer

Q: What is the right most integer of the expression 65776759 + 54697467  ? 9967 0

  • 1
    4
    Correct
    Wrong
  • 2
    6
    Correct
    Wrong
  • 3
    9
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "9"
Explanation :

Answer: C) 9 Explanation: Last digit for the power of 6 is 6 (always) Power cycle of 7 is 7, 9, 3, 1. Now 467/4 gives a remainder of 3 Then the last digit is 73 = 3 Last digit is 6 + 3 = 9.

Q: P and Q were assigned to do a work for an amount of 1200. P alone can do it in 15 days while Q can do it in 12 days. With the help of R they finish the work in 6 days. Find the share of R ? 2984 0

  • 1
    120
    Correct
    Wrong
  • 2
    240
    Correct
    Wrong
  • 3
    360
    Correct
    Wrong
  • 4
    180
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "120"
Explanation :

Answer: A) 120 Explanation: 1/15 + 1/12 + 1/R = 1/6, we got R = 60 (it means R will take 60 days to complete the work alone) so ratio of work done by P:Q:R = 1/15 : 1/12 : 1/60 = 5 : 4 : 1 so R share = (1/10) x 1200 = 120.

Q: Statement: The Chairman stressed the need for making education system more flexible and regretted that the curriculum has not been revised in keeping with the pace of the changes taking place.Course of action:a. Curriculum should be reviewed and revised periodically.b. System of education should be made more flexible. 1787 0

  • 1
    Only a follows
    Correct
    Wrong
  • 2
    Only b follows
    Correct
    Wrong
  • 3
    Both a & b follows
    Correct
    Wrong
  • 4
    Neither a nor b follows
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Both a & b follows"
Explanation :

Answer: C) Both a & b follows Explanation: Clearly, the situation demands making the education system more flexible and changing it periodically according to the needs of the time. So, both the courses follow.

Q: How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed ? 1280 0

  • 1
    5040
    Correct
    Wrong
  • 2
    2525
    Correct
    Wrong
  • 3
    2052
    Correct
    Wrong
  • 4
    4521
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "5040"
Explanation :

Answer: A) 5040 Explanation: The Word LOGARITHMS  contains 10 letters. To find how many 4 letter words we can form from that = P410 =10x9x8x7 = 5040.

Q: What is the next letter of the following sequence. N , O , M , P , L , Q , K , R , ? 4560 0

  • 1
    S
    Correct
    Wrong
  • 2
    I
    Correct
    Wrong
  • 3
    J
    Correct
    Wrong
  • 4
    T
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "J"
Explanation :

Answer: C) J Explanation: Here the series has mixed two series.n m l k...! reverse alphabeto p q r ...! forward alphabetSo the letter before k is j and after that letter after r is s and so on...

Q: Which digits will come in the place of '?' in the following series ? 372, 823, 644, 582, 46?, 8?7 1327 0

  • 1
    4, 4
    Correct
    Wrong
  • 2
    6, 2
    Correct
    Wrong
  • 3
    3, 2
    Correct
    Wrong
  • 4
    2, 5
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "6, 2"
Explanation :

Answer: B) 6, 2 Explanation: Given series is 372, 823, 644, 582, 46?, 8?7 Here the series follow the rule that :372 = 3+7+2 = 12823 = 8+2+3 = 13644 = 6+4+4 = 14582 = 5+8+2 = 1546? = 4+6+? = 16 => ? = 68?7 = 8+?+7 = 17 => ? = 2 So the missing numbers are 6 and 2

Q: If N is the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. What is the sum of the digits of N ? 1325 0

  • 1
    6
    Correct
    Wrong
  • 2
    8
    Correct
    Wrong
  • 3
    4
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "4"
Explanation :

Answer: C) 4 Explanation: N = H.C.F. of (4665 - 1305), (6905 - 4665) and (6905 - 1305) = H.C.F. of 3360, 2240 and 5600 = 1120. Sum of digits in N = ( 1 + 1 + 2 + 0 ) = 4

Q: I learnt from my experience that by______ my anger and resentment, and by avoiding _________ I could overcome opponents more successfully than could those who openly defied their adversaries. 4212 0

  • 1
    suppressing, conflict
    Correct
    Wrong
  • 2
    expressing, hostility
    Correct
    Wrong
  • 3
    stifling, temperance
    Correct
    Wrong
  • 4
    rousing, wrath
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "suppressing, conflict"
Explanation :

Answer: A) suppressing, conflict Explanation:

      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