IIT JEE Practice Question and Answer

Q: Which among the following is a folk dance of India? 3010 0

  • 1
    Garba
    Correct
    Wrong
  • 2
    Kathakali
    Correct
    Wrong
  • 3
    Manipuri
    Correct
    Wrong
  • 4
    Mohiniattam
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Garba"
Explanation :

Answer: A) Garba Explanation:

Q: In a race of 1000 m, A can beat by 100 m, in a race of 800m, B can beat C by 100m. By how many meters will A beat C in a race of 600 m ? 3008 0

  • 1
    127.5 m
    Correct
    Wrong
  • 2
    254 m
    Correct
    Wrong
  • 3
    184 m
    Correct
    Wrong
  • 4
    212 m
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "127.5 m"
Explanation :

Answer: A) 127.5 m Explanation: When A runs 1000 m, B runs 900 m and when B runs 800 m, C runs 700 m. When B runs 900 m, distance that C runs = (900 x 700)/800 = 6300/8 = 787.5 m. In a race of 1000 m, A beats C by (1000 - 787.5) = 212.5 m to C. In a race of 600 m, the number of meters by which A beats C = (600 x 212.5)/1000 = 127.5 m.

Q: The longest ship canal in the world is the 2997 0

  • 1
    Suez canal, Egypt
    Correct
    Wrong
  • 2
    Kiel canal, Germany
    Correct
    Wrong
  • 3
    Panama canal, Central America
    Correct
    Wrong
  • 4
    St. Laurence Seaway (USA and Canada)
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "St. Laurence Seaway (USA and Canada)"
Explanation :

Answer: D) St. Laurence Seaway (USA and Canada) Explanation:

  • Show AnswerHide Answer
  • Workspace

Answer : 2. "J, L"
Explanation :

Answer: B) J, L Explanation: This question concerns a committee’s decision about which five of eight areas of expenditure to reduce. The question requires you to suppose that K and N are among the areas that are to be reduced, and then to determine which pair of areas could not also be among the five areas that are reduced. The fourth condition given in the passage on which this question is based requires that exactly two of K, N, and J are reduced. Since the question asks us to suppose that both K and N are reduced, we know that J must not be reduced: Reduced         ::      K, NNot reduced   ::      J The second condition requires that if L is reduced, neither N nor O is reduced. So L and N cannot both be reduced. Here, since N is reduced, we know that L cannot be. Thus, adding this to what we’ve determined so far, we know that J and L are a pair of areas that cannot both be reduced if both K and N are reduced: Reduced        ::      K, NNot reduced  ::      J, L Answer choice (B) is therefore the correct answer.

Q: What is the next number in the given Number Series? 5, 24, 94, 279, ? 2987 0

  • 1
    587
    Correct
    Wrong
  • 2
    554
    Correct
    Wrong
  • 3
    489
    Correct
    Wrong
  • 4
    499
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "554"
Explanation :

Answer: B) 554 Explanation: The given number series follows a pattern that 5 x 5 – 1 = 24 24 x 4 – 2 = 94 94 x 3 – 3 = 279 279 x 2 – 4 = 554

Q: A watch gains 5 seconds in 3 minutes and was set right at 8 AM. What time will it show at 10 PM on the same day ? 2987 0

  • 1
    10 : 27 : 41 AM
    Correct
    Wrong
  • 2
    8 : 51 : 04 AM
    Correct
    Wrong
  • 3
    9 : 45 : 15 PM
    Correct
    Wrong
  • 4
    10 : 23 : 20 PM
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "10 : 23 : 20 PM"
Explanation :

Answer: D) 10 : 23 : 20 PM Explanation: The watch gains 5 seconds in 3 minutes = 100 seconds in 1 hour. From 8 AM to 10 PM on the same day, time passed is 14 hours. In 14 hours, the watch would have gained 1400 seconds or 23 minutes 20 seconds. So, when the correct time is 10 PM, the watch would show 10 : 23 : 20 PM

Q: Mother’s age today is thrice as her daughter’s. After 10 years it would be just double. How old is the daughter today ? 2987 0

  • 1
    8 years
    Correct
    Wrong
  • 2
    9 years
    Correct
    Wrong
  • 3
    10 years
    Correct
    Wrong
  • 4
    11 years
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "10 years"
Explanation :

Answer: C) 10 years Explanation: Let the age of the daughter today be ‘x’ years. Mother’s age today = 3x years After 10 years, we have 3x + 10 = 2(x + 10) x = 10 years.

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.

      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