IIT JEE Practice Question and Answer

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Answer : 4. "11 & 9"
Explanation :

Answer: D) 11 & 9 Explanation: Let the number of apples in each tree of the 5 farmers be a, b, c, d,e respectively. Therefore total no of apples are 7a, 9b, 11c, 13d and 14e respectively. Given, 7a+1 = 9b+3 = 11c-1 = 13d+3 = 14e-6 = x 9b+3 = 13d+3===> 9b = 13dso take b = 13 and d = 9 9b+3 = 9*13+3 = 120 ie, x=120 substituting7a+1 = 1207a = 119a = 17 11c-1 = 12011c = 121c=11 14e-6 = 12014e = 126e = 9 Yields per tree in the orchards of d 3rd & 4th farmers= 11,9

Q: рд╡рд╣ рдХрдВрдкреНрдпреВрдЯрд░ рдЬреЛ рдПрдирд╛рд▓реЙрдЧ рдФрд░ рдбрд┐рдЬрд┐рдЯрд▓ рджреЛрдиреЛрдВ рдХреЛ рдкреНрд░реЛрд╕реЗрд╕ рдХрд░рддрд╛ рд╣реИ, рдХрд╣рд▓рд╛рддрд╛ рд╣реИ 11877 1

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    рд╣рд╛рдЗрдмреНрд░рд┐рдб рдХрдВрдкреНрдпреВрдЯрд░
    Correct
    Wrong
  • 2
    рдореЗрдирдлрд╝реНрд░реЗрдо рдХрдВрдкреНрдпреВрдЯрд░
    Correct
    Wrong
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    рдбрд┐рдЬрд┐рдЯрд▓ рдХрдореНрдкреНрдпреВрдЯрд░
    Correct
    Wrong
  • 4
    рдПрдирд╛рд▓реЙрдЧ рдХрдВрдкреНрдпреВрдЯрд░
    Correct
    Wrong
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Answer : 1. "рд╣рд╛рдЗрдмреНрд░рд┐рдб рдХрдВрдкреНрдпреВрдЯрд░"
Explanation :

Answer: A) рд╣рд╛рдЗрдмреНрд░рд┐рдб рдХрдВрдкреНрдпреВрдЯрд░ рд╡реНрдпрд╛рдЦреНрдпрд╛: рд╡рд╣ рдХрдВрдкреНрдпреВрдЯрд░ рдЬреЛ рдПрдирд╛рд▓реЙрдЧ рдФрд░ рдбрд┐рдЬрд┐рдЯрд▓ рджреЛрдиреЛрдВ рдХреЛ рдкреНрд░реЛрд╕реЗрд╕ рдХрд░рддрд╛ рд╣реИ, рд╣рд╛рдЗрдмреНрд░рд┐рдб рдХрдВрдкреНрдпреВрдЯрд░ рдХрд╣рд▓рд╛рддрд╛ рд╣реИред

Q: If E = 5 and READ is coded as 7, then what is the code of 'DEAR' ? 11812 0

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    6
    Correct
    Wrong
  • 2
    7
    Correct
    Wrong
  • 3
    8
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "7"
Explanation :

Answer: B) 7 Explanation: Here E = 5 = 5/1 = 5 => READ = 18 + 5 + 1 + 4 = 28/4 = 7 => DEAR = 4 + 5 + 1 + 18 = 28/4 = 7

Q: An air conditioner can coo the hall in 40 miutes while another takes 45 minutes to cool under similar conditions. If both air conditioners are switched on at same instance then how long will it take to cool the room approximately ? 11473 0

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    18 minutes
    Correct
    Wrong
  • 2
    19 minutes
    Correct
    Wrong
  • 3
    22 minutes
    Correct
    Wrong
  • 4
    24 minutes
    Correct
    Wrong
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Answer : 3. "22 minutes"
Explanation :

Answer: C) 22 minutes Explanation: Let the two conditioners be A and B 'A' cools at 40min 'B' at 45min Together =(axb)/(a+b) = (45x40)/85 = 21.1764 = (approx) 22 min.

Q: A candidate got 35% of the votes polled and he lost to his rival by 2250 votes. How many votes were cast ? 11393 0

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    7500
    Correct
    Wrong
  • 2
    6200
    Correct
    Wrong
  • 3
    5600
    Correct
    Wrong
  • 4
    4700
    Correct
    Wrong
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Answer : 1. "7500"
Explanation :

Answer: A) 7500 Explanation: Let the candidates be A & B35%-----------A65%-----------B Difference of votes (65-35)% = 30% => ┬а ┬а ┬а ┬а ┬а30% ------- 2250Then for 100% -------- ? ┬а ┬а => 7500

Q: "I am five times as old as you were, when I was as old as you are", said a man to his son. Find out their present ages, if the sum of their ages is 64 years ? 11334 0

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    Father = 50; Son =14
    Correct
    Wrong
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    Father = 40; Son =24
    Correct
    Wrong
  • 3
    Father = 60; Son =4
    Correct
    Wrong
  • 4
    Father = 48; Son =16
    Correct
    Wrong
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Answer : 2. "Father = 40; Son =24"
Explanation :

Answer: B) Father = 40; Son =24 Explanation: Let the present age of the man be 'P' and son be 'Q',Given, P + Q = 64 or Q = (64 - P)Now the man says "I am five times as old as you were, when I was as old as you are",So, P = 5[B - (P - Q)]We get 6P = 10Q,Substitute value for Q,6P = 10(64 - P),Therefore P = 40, Q = 24.

Q: Regarding the Magna Carta, which statement is false? 11105 0

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    The document assured all English citizens freedom of speech.
    Correct
    Wrong
  • 2
    The document required trial by a jury of one's peers.
    Correct
    Wrong
  • 3
    The meeting of the English Barons and King John occurred at Runnymede.
    Correct
    Wrong
  • 4
    King John was forced to sign the document.
    Correct
    Wrong
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Answer : 2. "The document required trial by a jury of one's peers."
Explanation :

Answer: B) The document required trial by a jury of one's peers. Explanation:

Q: Find the Odd one out of the given series 6, 15, 35, 77, 165, 221 11052 0

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    221
    Correct
    Wrong
  • 2
    165
    Correct
    Wrong
  • 3
    35
    Correct
    Wrong
  • 4
    77
    Correct
    Wrong
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Answer : 2. "165"
Explanation :

Answer: B) 165 Explanation: The terms of the series are products of two consecutive prime numbers i.e. (2 x 3), (3 x 5), (5 x 7), (7 x 11),..... So, 165 is wrong and must be replaced by (11 x 13) i.e. 143.

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