IIT JEE Practice Question and Answer

Q: Four persons can cross a bridge in 3,7,13,17 minutes.Only two can cross at a time.Find the minimum time taken by the four to cross the bridge ? 5243 0

  • 1
    17 minutes
    Correct
    Wrong
  • 2
    20 minutes
    Correct
    Wrong
  • 3
    34 minutes
    Correct
    Wrong
  • 4
    12 minutes
    Correct
    Wrong
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Answer : 2. "20 minutes"
Explanation :

Answer: B) 20 minutes Explanation: First send 17 and 7. After 7 minutes, 7 is at finish and 17 needs 10 more minutes to complete his travel. now send 13. After 10 minutes 17 reaches finish and 13 needs 3 more minutes to complete. now send 3. both 3 and 13 reach destination at the same time after 3 minutes. hence the time taken is 7+10+3=20 minutes.

Q: The first step in solving an Ethical Dilemma is to 5236 0

  • 1
    identify the alternatives
    Correct
    Wrong
  • 2
    identify an etical situation and ethical issues involved
    Correct
    Wrong
  • 3
    weigh the impact of each alternative on various stakeholders.
    Correct
    Wrong
  • 4
    recognize and analyze the principal elements in the situation.
    Correct
    Wrong
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Answer : 2. "identify an etical situation and ethical issues involved"
Explanation :

Answer: B) identify an etical situation and ethical issues involved Explanation:

Q: Warm is to Hot as Not so Good is to 5228 0

  • 1
    Average
    Correct
    Wrong
  • 2
    Fair
    Correct
    Wrong
  • 3
    Not so bad
    Correct
    Wrong
  • 4
    Worse
    Correct
    Wrong
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Answer : 4. "Worse"
Explanation :

Answer: D) Worse Explanation: Warm and hot are in the same meaning sense , so not so good is same as worse in meaning.

Q: Karan started a business investing Rs 29000. After five months, Satish joined with a capital of Rs 18000. If at the end of the year, they earn a profit of Rs. 16970, then what will be the share of Satish in the profit ? 5188 0

  • 1
    Rs. 5422
    Correct
    Wrong
  • 2
    Rs. 5489
    Correct
    Wrong
  • 3
    Rs. 4511
    Correct
    Wrong
  • 4
    Rs. 6145
    Correct
    Wrong
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Answer : 3. "Rs. 4511"
Explanation :

Answer: C) Rs. 4511 Explanation: Now as per question, Karan invested for 12 months and Satish invested for 7 months. So, Karan:Satish = (29000 x 12):(18000 x 7) = 348:126 = 58:21   Satish Ratio in profit will be= 16970×2179 = Rs. 4511

Q: What is the next letter of the following sequence. N , O , M , P , L , Q , K , R , ? 5180 0

  • 1
    S
    Correct
    Wrong
  • 2
    I
    Correct
    Wrong
  • 3
    J
    Correct
    Wrong
  • 4
    T
    Correct
    Wrong
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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: Find the missing alphabet in the given sequence ? A, Z, Y, B, C, ?, W, D 5174 0

  • 1
    E
    Correct
    Wrong
  • 2
    Z
    Correct
    Wrong
  • 3
    X
    Correct
    Wrong
  • 4
    F
    Correct
    Wrong
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Answer : 3. "X"
Explanation :

Answer: C) X Explanation: first letter A with last letter Zsimilarly 2nd last letter Y with 2nd letter BNow 3rd letter C with 3rd last letter X4th last letter W with 4th letter D and so on.... Therefore the missing letter is X

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Answer : 4. "444 kms"
Explanation :

Answer: D) 444 kms Explanation: 1h ----- 5 kms? ------ 60 kms Time = 12 hrs Relative Speed = 16 + 21 = 37 kmph T = 12 hrs D = S x T = 37 x 12 = 444 kms.

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Answer : 3. "38000"
Explanation :

Answer: C) 38000 Explanation: Here from the given information, The ratio of investments of Rajeev, Deepu & Shakti is R : D : S = (10000 × 12) : (12000 × 10) : (7200 × 8) = 25 : 25 : 12 Now the Profit = 2 × (72000-10000) = 124000 Share of Rajeev = 124000 x 25/62 = 48000 Profit of Rajeev = 48000 - 10000 = 38000

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