IIT JEE Practice Question and Answer

Q: The accounting process involves all of the following except 7061 0

  • 1
    identifying economic transactions that are relevant to the business
    Correct
    Wrong
  • 2
    analyzing and interpreting financial reports
    Correct
    Wrong
  • 3
    communicating financial information to users by preparing financial reports
    Correct
    Wrong
  • 4
    recording nonquantifiable economic events
    Correct
    Wrong
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Answer : 2. "analyzing and interpreting financial reports"
Explanation :

Answer: B) analyzing and interpreting financial reports Explanation: The three steps in the accounting process are   1. Identification, 2. Recording, and 3. Communication.    Hence, analyzing and interpreting financial reports is not involved in the accounting process.

Q: For x∈N, x>1,  and  p=logxx+1, q=logx+1x+2 then which one of the following is correct? 6975 2

  • 1
    p < q
    Correct
    Wrong
  • 2
    p = q
    Correct
    Wrong
  • 3
    p > q
    Correct
    Wrong
  • 4
    can't be determined
    Correct
    Wrong
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Answer : 3. "p > q"
Explanation :

Answer: C) p > q Explanation: kl>k+1l+1 for (k,l) > 0 and  k > l        Let     k = x+1    and   l = x       Therefore, x+1x>(x+1)+1(x)+1        (x + 1) > x       Therefore, log(x+1)log(x)>log(x+2)log(x+1)       ⇒logxx+1 >logx+1x+2

Q: In which atmospheric layer are the communication satellites located? 6933 0

  • 1
    Thermosphere
    Correct
    Wrong
  • 2
    Troposphere
    Correct
    Wrong
  • 3
    Mesosphere
    Correct
    Wrong
  • 4
    Stratosphere
    Correct
    Wrong
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Answer : 1. "Thermosphere"
Explanation :

Answer: A) Thermosphere Explanation: In terms of the Earth's atmosphere, they occupy regions called the thermosphere and the exosphere. The layer through which a satellite orbits depends on the satellite's function and the kind of orbit it has.   The thermosphere is a region of very high temperature that extends from the top of the mesosphere at around 85 kilometers (53 miles) up to 640 kilometers (400 miles) above the Earth's surface. It is called the thermosphere because temperatures can reach up to 1,500 degrees Celsius (2,732 degrees Fahrenheit).   However, despite the high temperatures, the pressure is very low, so satellites don't suffer heat damage.

Q: A cistern has a leak which would empty the cistern in 20 minutes. A tap is turned on which admits 4 liters a minute into the cistern, and it is emptied in 24 minutes. How many liters does the cistern hold ? 6927 0

  • 1
    360 lit
    Correct
    Wrong
  • 2
    480 lit
    Correct
    Wrong
  • 3
    320 lit
    Correct
    Wrong
  • 4
    420 lit
    Correct
    Wrong
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Answer : 2. "480 lit"
Explanation :

Answer: B) 480 lit Explanation: 1/k - 1/20 = -1/24 k = 120 120 x 4 = 480 Therefore, the capacity of the cistern is 480 liters.

Q: 45% of 750  -  25% of 480 = ? 6880 0

  • 1
    337.50
    Correct
    Wrong
  • 2
    217.50
    Correct
    Wrong
  • 3
    376.21
    Correct
    Wrong
  • 4
    120
    Correct
    Wrong
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Answer : 2. "217.50"
Explanation :

Answer: B) 217.50 Explanation: Given expression = (45 x 750/100) - (25 x 480/100) = (337.50 - 120) = 217.50

Q: How did the Interstate Commerce Act of 1887 help farmers? 6778 0

  • 1
    It took government payments to railroads and gave them to farmers.
    Correct
    Wrong
  • 2
    It gave farmers shares in the largest railroad companies.
    Correct
    Wrong
  • 3
    It prevented railroads from charging farmers more than other customers.
    Correct
    Wrong
  • 4
    It forced railroads to build lines to the largest farming areas.
    Correct
    Wrong
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Answer : 3. "It prevented railroads from charging farmers more than other customers."
Explanation :

Answer: C) It prevented railroads from charging farmers more than other customers. Explanation: In 1887 Congress passed the Interstate Commerce Act, making the railroads the first industry subject to Federal regulation. Congress passed the law largely in response to public demand that railroad operations be regulated.   Railroads discriminated in the prices they charged to passengers and shippers in different localities by providing rebates to large shippers or buyers. These practices were especially harmful to American farmers, who lacked the shipment volume necessary to obtain more favorable rates.

Q: In a party there are 5 couples. Out of them 5 people are chosen at random. Find the probability that there are at the least two couples ? 6778 0

  • 1
    6/7
    Correct
    Wrong
  • 2
    19/21
    Correct
    Wrong
  • 3
    7/31
    Correct
    Wrong
  • 4
    5/21
    Correct
    Wrong
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Answer : 4. "5/21"
Explanation :

Answer: D) 5/21 Explanation: Number of ways of (selecting at least two couples among five people selected) = (⁵C₂ x ⁶C₁) As remaining person can be any one among three couples left. Required probability = (⁵C₂ x ⁶C₁)/¹⁰C₅= (10 x 6)/252 = 5/21

Q: In a purse there are 30 coins, twenty one-rupee and remaining 50-paise coins. Eleven coins are picked simultaneously at random and are placed in a box. If a coin is now picked from the box, find the probability of it being a rupee coin? 6755 0

  • 1
    4/7
    Correct
    Wrong
  • 2
    2/3
    Correct
    Wrong
  • 3
    1/2
    Correct
    Wrong
  • 4
    5/6
    Correct
    Wrong
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Answer : 2. "2/3"
Explanation :

Answer: B) 2/3 Explanation: Total coins 30 In that, 1 rupee coins 20 50 paise coins 10Probability of total 1 rupee coins =  20C11 Probability that 11 coins are picked = 30C11 Required probability of a coin now picked from the box is 1 rupee = 20C11/30C11 = 2/3.

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