IIT JEE Practice Question and Answer

Q: How long does a basketball game last? 1405 0

  • 1
    35 min
    Correct
    Wrong
  • 2
    55 min
    Correct
    Wrong
  • 3
    1 hr 15 min
    Correct
    Wrong
  • 4
    48 min
    Correct
    Wrong
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Answer : 4. "48 min"
Explanation :

Answer: D) 48 min Explanation: A basketball game last for a total of 48 minutes which has 4 quarters of 12 minutes each excluding all timeouts, 15 min half time, fouls,...

Q: Father of Indian Engineering - 1405 0

  • 1
    James Hickey
    Correct
    Wrong
  • 2
    Dr. M.S. Swaminathan
    Correct
    Wrong
  • 3
    Nandalal Bose
    Correct
    Wrong
  • 4
    M.Visweswariah
    Correct
    Wrong
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Answer : 4. "M.Visweswariah"
Explanation :

Answer: D) M.Visweswariah Explanation: M.Visweswariah is known as the Father of Indian Engineering.   Father of Indian Printing - James Hickey Father of Indian Green Revolution - Dr. M.S. Swaminathan Father of Indian Painting - Nandalal Bose.

Q: Where does translation take place in the cell? 1405 0

  • 1
    Nucleus
    Correct
    Wrong
  • 2
    Mitochondria
    Correct
    Wrong
  • 3
    Ribosomes
    Correct
    Wrong
  • 4
    Cytoplasm
    Correct
    Wrong
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Answer : 4. "Cytoplasm"
Explanation :

Answer: D) Cytoplasm Explanation: Translation occurs in the cytoplasm whereas transcription occurs in the nucleus.   Transcription and Translation: Terms transcription and translation in biology are generally related to the DNA and its properties. Human cells replicate. In order to do that, they have to produce the same constituents for the new cell that is to be made. The only way to do that is by producing proteins.   The proteins are produced in the process that is called protein synthesis. The first step is in the nucleus where a particular gene is being expressed so it enables all protein factors to come and to replicate that part of a chromosome. This is finished when mRNA, the same single-stranded genetic code of a particular gene, is formed. This is transcription. Right after that, the mRNA enters the cytoplasm through nuclear pores. There, it could be translated into proteins by ribosomes. This process is called translation.

Q: The Dibang Wildlife Sanctuary is located in which state of India ? 1405 0

  • 1
    Kerala
    Correct
    Wrong
  • 2
    Haryana
    Correct
    Wrong
  • 3
    Arunachal Pradesh
    Correct
    Wrong
  • 4
    Maharashtra
    Correct
    Wrong
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Answer : 3. "Arunachal Pradesh"
Explanation :

Answer: C) Arunachal Pradesh Explanation: The Dibang Wildlife Sanctuary is one of the eight wildlife sanctuaries of Arunachal Pradesh, India.

Q: What is the sum of all 3 digits number that can be formed using digits 0,1,2,3,4,5 with no repitition ? 1404 0

  • 1
    28450
    Correct
    Wrong
  • 2
    26340
    Correct
    Wrong
  • 3
    32640
    Correct
    Wrong
  • 4
    36450
    Correct
    Wrong
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Answer : 3. "32640"
Explanation :

Answer: C) 32640 Explanation: We know that zero can't be in hundreds place. But let's assume that our number could start with zero.   The formula to find sum of all numbers in a permutation is   111 x no of ways numbers can be formed for a number at given position x sum of all given digits   No of 1 s depends on number of digits   So,the answer us   111 x 20 x (0+1+2+3+4+5) = 33300   We got 20 as follows. If we have 0 in units place we can form a number in 4*5 ways. This is for all numbers. So we have substituted 20 in formula.   Now, this is not the final answer because we have included 0 in hundreds place. so we have to remove the sum of all numbers that starts with 0.   This is nothing but the sum of all 2 digits numbers formed by 1 2 3 4 5. Because 0 at first place makes it a 2 digit number.   So the sum for this is 11 x 4 x (1+2+3+4+5). =660   Hope u understood why we use 4. Each number can be formed in 4x1 ways   So, the final answer is 33300-660 = 32640

Q: Air pressure is measured in which of the following units? 1404 0

  • 1
    Steridian
    Correct
    Wrong
  • 2
    kg/mts
    Correct
    Wrong
  • 3
    Newton
    Correct
    Wrong
  • 4
    Pascal
    Correct
    Wrong
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Answer : 4. "Pascal"
Explanation :

Answer: D) Pascal Explanation: Pressure = (Net Force) / (Applied area) = Newton / square meters Measuring units of pressure are: . Pascal. Bar. Torr. Pounds per square inch (psi). Standard atmosphere (atm).

Q: What value will come in place of question mark (?) in the number - series given below  ?  4, 30, ?, 1440, 7195, 71940 1403 0

  • 1
    145
    Correct
    Wrong
  • 2
    545
    Correct
    Wrong
  • 3
    650
    Correct
    Wrong
  • 4
    999
    Correct
    Wrong
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Answer : 1. "145"
Explanation :

Answer: A) 145 Explanation: 4       30       ?     1440       7195      71940   Here the given series follows a pattern of   4   4 x 10 - 10 = 30   30 x 5 - 5  = 145   145 x 10 - 10 = 1440   1440 x 5 - 5 = 7195   7195 x 10 - 10 = 71940   Hence, the missing number is 145

Q: A man pays Rs. 6.40 per litre of milk. He adds water and sells the mixture at Rs. 8 per litre, thereby making 37.5% profit. The proportion of water to milk received by the customers is 1403 0

  • 1
    1 : 10
    Correct
    Wrong
  • 2
    10 : 1
    Correct
    Wrong
  • 3
    9 : 11
    Correct
    Wrong
  • 4
    11 : 9
    Correct
    Wrong
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Answer : 1. "1 : 10"
Explanation :

Answer: A) 1 : 10 Explanation: Customer ratio of Milk and Water is given by Milk          ::        Water   6.4                         0          81 + 38 =6411  6411                      6410 - 6411  => Milk : Water = 110 : 11 = 10 : 1   Therefore, the proportionate of Water to Milk for Customer is 1 : 10

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