IIT JEE Practice Question and Answer

Q: Transition : Change :: Immobility :  ? 3523 0

  • 1
    Stillness
    Correct
    Wrong
  • 2
    Liveliness
    Correct
    Wrong
  • 3
    Action
    Correct
    Wrong
  • 4
    Busyness
    Correct
    Wrong
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Answer : 1. "Stillness"
Explanation :

Answer: A) Stillness Explanation: Given Transition is to Change, and we know that Transition and change are Synonyms. Similarly, Immobility means not moving and synonym of immobility are motionlessness, stillness,...   Hence, Transition is to change as immobility is to stillness.

Q: A group of men can complete a job in K hours. After every 4 hours, half the number of men working at that point of time leave the job. Continuing this way if the job is finished in 16 hours, what is the value of K ? 3505 0

  • 1
    7 hrs
    Correct
    Wrong
  • 2
    7.5 hrs
    Correct
    Wrong
  • 3
    8 hrs
    Correct
    Wrong
  • 4
    8.25 hrs
    Correct
    Wrong
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Answer : 2. "7.5 hrs"
Explanation :

Answer: B) 7.5 hrs Explanation: Let there are L men job requires LK man hours.   job completed in first 4 hrs = L x 4 = 4L job completed in next 4 hrs = 4 x L/2 = 2L job completed in next 4 hrs = 4 x L/4 = L job completed in last 4 hrs = 4 x L/8 = L/2 4L + 2L + L + L/2 = KL K = 7+1/2 = 7.5 hours.

Q: Fresh grapes contain 60% water, while dry grapes contain 40% water. How many kgs of dry grapes can be obtained by 60 kg of fresh grapes? 3502 0

  • 1
    25 kgs
    Correct
    Wrong
  • 2
    30 kgs
    Correct
    Wrong
  • 3
    35 kgs
    Correct
    Wrong
  • 4
    40 kgs
    Correct
    Wrong
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Answer : 4. "40 kgs"
Explanation :

Answer: D) 40 kgs Explanation: The fruit content in both the fresh fruit and dry fruit is the same. Let 'p' kgs of dry grapes are obtained from the 60 kgs of fresh grapes   => 60 x 40100 = p x 60100=> p = 40 kgs.   Therefore, 40 kgs of Dry grapes are obtained from 60 kgs of Fresh grapes.

Q: The oldest type of energy known to man is _____? 3497 0

  • 1
    Geothermal Energy
    Correct
    Wrong
  • 2
    Solar Power
    Correct
    Wrong
  • 3
    Wind Power
    Correct
    Wrong
  • 4
    Tidal Power
    Correct
    Wrong
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Answer : 1. "Geothermal Energy"
Explanation :

Answer: A) Geothermal Energy Explanation: Geothermal energy is heat energy generated and stored in the Earth. Geothermal energy has been used for thousands of years in some countries for cooking and heating. It is simply power derived from the Earth's internal heat.

Q: Which is a green planet in the solar system? 3495 0

  • 1
    Pluto
    Correct
    Wrong
  • 2
    Venus
    Correct
    Wrong
  • 3
    Uranus
    Correct
    Wrong
  • 4
    Mars
    Correct
    Wrong
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Answer : 3. "Uranus"
Explanation :

Answer: C) Uranus Explanation: Uranus is the seventh planet from the Sun which looks green color. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System. Uranus is similar in composition to Neptune, and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn.   Colors of other planets:: Mercury - Gray or slightly brownish Venus - Pale yellow Earth - Blue with white clouds Mars - Mostly reddish brown Jupiter - Orange and white bands Saturn - Pale gold Uranus - Green Neptune - Pale blue Pluto - Light brown

Q: In a row of boys, Haran is eleventh from the left and manoj is seventeenth form the right. When they exchange their places than Haran will be thirteenth from the left. Which of the following will be the new position of Manoj from the right ? 3495 0

  • 1
    11
    Correct
    Wrong
  • 2
    19
    Correct
    Wrong
  • 3
    13
    Correct
    Wrong
  • 4
    17
    Correct
    Wrong
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Answer : 2. "19"
Explanation :

Answer: B) 19 Explanation: Here total number of boys in the row = 11 + 19 = 13 + 17 = 30 Here after exchanging the places of Haran & Manoj  => Manoj replaces Harans place of 11th from left  But in the question he asked Manoj's place from right = 30 - 11 = 19th place.

Q: Complete the missing number in the given series. 5,  20,  76,  (—),  448 3470 0

  • 1
    185
    Correct
    Wrong
  • 2
    225
    Correct
    Wrong
  • 3
    415
    Correct
    Wrong
  • 4
    232
    Correct
    Wrong
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Answer : 2. "225"
Explanation :

Answer: B) 225 Explanation: The series follows the following pattern 5 X 5 – 5 = 20 20 X 4 – 4 = 76 76 X 3 – 3 = 225 225 X 2 – 2 = 448 Hence, the term 225 denoted by (d) completes the series

Q: A check returned by the bank marked nsf means 3466 0

  • 1
    Cheque has been forged
    Correct
    Wrong
  • 2
    Cheque can't be cashed being illegal
    Correct
    Wrong
  • 3
    There are not sufficient funds in your accoun
    Correct
    Wrong
  • 4
    Bank can't verify your identity
    Correct
    Wrong
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Answer : 3. "There are not sufficient funds in your accoun"
Explanation :

Answer: C) There are not sufficient funds in your accoun Explanation: NSF means - Not Sufficient Funds.

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