IIT JEE Practice Question and Answer

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Answer : 4. "72"
Explanation :

Answer: D) 72 Explanation: If number of visitors on 1st, 2nd, 3rd, 4th & 5th day are k, l, m, n & o respectively, thenk + l + m + n = 58 x 4 = 232 ---- (i) & l + m + n + o = 60 x 4 = 240 ---- (ii)Subtracting (i) from (ii), we get o-k = 8 ---(iii)Given, k/o = 8/9 ----(iv)So from (iii) & (iv), we geta = 64, e = 72Therefore, number of visitors on 5th day is 72.

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Answer : 4. "2834"
Explanation :

Answer: D) 2834 Explanation: Let the total number of votes polled in the election be 100k.Number of valid votes = 100k - 20% (100k) = 80kLet the number of votes polled in favour of K and L be a and b respectively.a - b = 15% (100k) => a = b + 15k=> a + b = b + 15k + bNow, 2b + 15k = 80k and hence b = 32.5kIt is given that 100k = 872032.5k = 32.5k/100k x 8720 = 2834 The number of valid votes polled in favour of L is 2834.

Q: दो धनात्मक संख्याओं का अनुपात 3 : 5 है और संख्या का औसत 48 है। संख्याओं का गुणनफल क्या है? 3151 1

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    3365
    Correct
    Wrong
  • 2
    2160
    Correct
    Wrong
  • 3
    1854
    Correct
    Wrong
  • 4
    1632
    Correct
    Wrong
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Answer : 2. "2160"
Explanation :

Answer: B) 2160 स्पष्टीकरण: माना संख्या 3p और 5p ATQ, 8p = 2 x 48 p = 96/8 p = 12 संख्याएँ 36 और 60 हैं। इसलिए, संख्याओं का गुणनफल = 36 x 60 = 2160।

Q: The longest ship canal in the world is the 3149 0

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    Suez canal, Egypt
    Correct
    Wrong
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    Kiel canal, Germany
    Correct
    Wrong
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    Panama canal, Central America
    Correct
    Wrong
  • 4
    St. Laurence Seaway (USA and Canada)
    Correct
    Wrong
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Answer : 4. "St. Laurence Seaway (USA and Canada)"
Explanation :

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

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Answer : 2. "2 x (18!)"
Explanation :

Answer: B) 2 x (18!) Explanation: A person can be chosen out of 18 people in 18 ways to be seated between Musharraf and Manmohan. Now consider Musharraf, Manmohan, and the third person, sitting between them, as a single personality, we can arrange them in 17! ways but Musharraf and Manmohan can also be arranged in 2 ways.    Required number of permutations = 18 x (17!) x 2 = 2 x 18!

Q: Tract of land used for raising crops or livestock. 3144 0

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    A field
    Correct
    Wrong
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    A farm
    Correct
    Wrong
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    Both A & B
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Both A & B"
Explanation :

Answer: C) Both A & B Explanation: A tract of land used for raising crops or livestockcan be called a field or a farm.

Q: The value of money varies 3144 0

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    inversely with the price level
    Correct
    Wrong
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    directly with the price level
    Correct
    Wrong
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    directly with the volume of employment
    Correct
    Wrong
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    directly with the interest rate
    Correct
    Wrong
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Answer : 1. "inversely with the price level"
Explanation :

Answer: A) inversely with the price level Explanation:

Q: In what way does ocean water move globally? 3116 0

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    Along cold water currents from the equator to the poles.
    Correct
    Wrong
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    Along warm water currents from the warmer regions to colder regions
    Correct
    Wrong
  • 3
    Along warm water currents from the equator to the poles
    Correct
    Wrong
  • 4
    None of the above
    Correct
    Wrong
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Answer : 3. "Along warm water currents from the equator to the poles"
Explanation :

Answer: C) Along warm water currents from the equator to the poles Explanation:

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