IIT JEE Practice Question and Answer

Q: Which state has established India's first Centre for Animal Law  ? 2500 0

  • 1
    Madhya Pradesh
    Correct
    Wrong
  • 2
    Uttar Pradesh
    Correct
    Wrong
  • 3
    Maharashtra
    Correct
    Wrong
  • 4
    Telangana
    Correct
    Wrong
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Answer : 4. "Telangana"
Explanation :

Answer: D) Telangana Explanation:

Q: In the series given below , how many 8's are there each of which is exactly divisible by its immediate preceeding as well as succeeding numbers ?2 8 3 8 2 4 8 2 4 8 6 8 2 8 2 4 8 3 8 2 8 6 2500 0

  • 1
    five
    Correct
    Wrong
  • 2
    four
    Correct
    Wrong
  • 3
    two
    Correct
    Wrong
  • 4
    one
    Correct
    Wrong
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Answer : 3. "two"
Explanation :

Answer: C) two Explanation: Clearly, we may mark such sets of 3 numbers, in which the middle number is 8 and each of the two numbers on both sides of it is a factor of 8, as shown below : 2 8 3 8 2 4 8 2 4 8 6 8 2 8 2 4 8 3 8 2 8 6 So, there are two such 8's. Hence the answer is C.

Q: 40% of 265 + 35% of 180 = 50% of ? 2495 0

  • 1
    383
    Correct
    Wrong
  • 2
    338
    Correct
    Wrong
  • 3
    84.5
    Correct
    Wrong
  • 4
    253.5
    Correct
    Wrong
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Answer : 2. "338"
Explanation :

Answer: B) 338 Explanation: We know that 40% = 25   40% of 265 + 35% of 180 = 50% ?   25 x 265 + 35% of 180 = 50% ?   We know that (35% of 180 = 180% of 35) & 180% = 95   25 x 265 + 95 x 35 = 50% ?   106 + 63 = 50% ?   ?= 2 x 169 = 338.

Q: 7, 11, 19, 35, ? Find the next number in the given number series? 2494 0

  • 1
    131
    Correct
    Wrong
  • 2
    94
    Correct
    Wrong
  • 3
    83
    Correct
    Wrong
  • 4
    67
    Correct
    Wrong
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Answer : 4. "67"
Explanation :

Answer: D) 67 Explanation: Here the given series 7, 11, 19, 35, ? follows a pattern that (x 2 - 3) i.e, 7 7 x 2 - 3 = 11 11 x 2 - 3 = 19 19 x 2 - 3 = 35 35 x 2 - 3 = 67 67 x 2 - 3 = 131   Hence the next number in the given number series is 67.

Q: L is the daughter of K's brother's wife's father-in-law's daughter. K is L's __ 2494 0

  • 1
    Son
    Correct
    Wrong
  • 2
    Aunt
    Correct
    Wrong
  • 3
    Uncle
    Correct
    Wrong
  • 4
    Can't be determined
    Correct
    Wrong
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Answer : 4. "Can't be determined"
Explanation :

Answer: D) Can't be determined Explanation: K's brother's wife's father-in-law is K's brother's father i.e. K's father. K's father's daughter is K's Sister.L is daughter of K's sister => K is L's Uncle or Aunt.

Q: A sum of money at simple interest amounts to Rs. 415 in 2 years and to Rs. 514 in 4 years. The sum is ? 2493 0

  • 1
    Rs. 316
    Correct
    Wrong
  • 2
    Rs. 251
    Correct
    Wrong
  • 3
    Rs. 154
    Correct
    Wrong
  • 4
    Rs. 294
    Correct
    Wrong
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Answer : 1. "Rs. 316"
Explanation :

Answer: A) Rs. 316 Explanation: S.I. for 2 years = (514 - 415) = Rs. 99S.I. for 1 year = 99/2 Principal = (415 - 99) = Rs. 316.

Q: Dry ice is nothing but 2491 0

  • 1
    Solid carbon dioxide
    Correct
    Wrong
  • 2
    Baking soda
    Correct
    Wrong
  • 3
    Gaseous carbon dioxide
    Correct
    Wrong
  • 4
    Carbon monoxide
    Correct
    Wrong
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Answer : 1. "Solid carbon dioxide"
Explanation :

Answer: A) Solid carbon dioxide Explanation:   Dry ice is solid form of carbon dioxide, used as a cooling agent.   It lower temperature than that of water ice and not leave any residue.

Q: Who invented Dynamite? 2490 0

  • 1
    Graham Bell
    Correct
    Wrong
  • 2
    Nikola Tesla
    Correct
    Wrong
  • 3
    Alfred Nobel
    Correct
    Wrong
  • 4
    Louis Pateur
    Correct
    Wrong
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Answer : 3. "Alfred Nobel"
Explanation :

Answer: C) Alfred Nobel Explanation: Alfred Bernhard Nobel was a Swedish chemist, engineer, inventor, businessman, and philanthropist. Known for inventing Dynamite, Nobel also owned Bofors, which he had redirected from its previous role as primarily an iron and steel producer to a major manufacturer of cannon and other armaments.

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