IIT JEE Practice Question and Answer

Q: The Largest Component of National Income is 2051 0

  • 1
    Proprietors Income
    Correct
    Wrong
  • 2
    Compensation of Employees
    Correct
    Wrong
  • 3
    Corporate Profits
    Correct
    Wrong
  • 4
    Rental Income
    Correct
    Wrong
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Answer : 2. "Compensation of Employees"
Explanation :

Answer: B) Compensation of Employees Explanation: National Income is the total income value of the goods and services produced by the residents of a country, usually during the period of one year. National Income is categorized into 6 components. They are : 1. Compensation of Employees (Wages and Benefits) 2. Corporate Profits 3. Rental Income 4. Proprietors Income (Income of unincorporated business) 5. Net Interest The Largest Component of National Income is Compensation of Employees.   The Largest component of National Income in India is Service Sector.

Q: A sum of money becomes 7/6 of itself in 3 years at a certain rate of simple interest. The rate per annum is ? 2050 0

  • 1
    45/7 %
    Correct
    Wrong
  • 2
    50/9 %
    Correct
    Wrong
  • 3
    51/7 %
    Correct
    Wrong
  • 4
    47/ 9 %
    Correct
    Wrong
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Answer : 2. "50/9 %"
Explanation :

Answer: B) 50/9 % Explanation: Let sum = S. Then, amount = 7S/6 S.I. = 7S/6 - S = S/6; Time = 3 years. Rate = (100 x S) / (S x 6 x 3) = 5 5/9 = 50/9 %.

Q: A and B started a business investing the money in ratio 4:6, after 6 months B withdraw his investment and C joins him with twice the amount of B. At the end of the year total profit is Rs.3315. Find share of C ? 2048 0

  • 1
    Rs. 450
    Correct
    Wrong
  • 2
    Rs. 1020
    Correct
    Wrong
  • 3
    Rs. 765
    Correct
    Wrong
  • 4
    Rs. 1530
    Correct
    Wrong
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Answer : 4. "Rs. 1530"
Explanation :

Answer: D) Rs. 1530 Explanation: Ratio of investments of A, B & C => Share of C = 1530 Share of B = 765 Share of A = 1020

Q: I can Honk without using a Horn. Who am I? 2047 0

  • 1
    Goose
    Correct
    Wrong
  • 2
    Crane
    Correct
    Wrong
  • 3
    Penguin
    Correct
    Wrong
  • 4
    Humming
    Correct
    Wrong
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Answer : 1. "Goose"
Explanation :

Answer: A) Goose Explanation: Goose can Honk without using a Horn. Geese are waterfowl of the family Anatidae.

Q: What is the probability that a leap year has 53 Saturdays and 52 Sundays ? 2047 0

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

Answer: A) 1/7 Explanation: A leap year has 52 weeks and two daysTotal number of cases = 7Number of favourable cases = 1i.e., {Friday, Saturday} Required Probability = 1/7

Q: 88%of 370 +24% of 210-x =118 find x 2047 0

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Answer :
Explanation :

From the given equation, 88x370/100 + 24x210/100 - 118 = x => x = 325.6 + 50.4 - 118 x = 258.

Q: There are 10 Letters and 10 correspondingly 10 different Address. If the letter are put into envelope randomly, then find the Probability that Exactly 9 letters will at the Correct Address ? 2047 0

  • 1
    1/10
    Correct
    Wrong
  • 2
    1/9
    Correct
    Wrong
  • 3
    1
    Correct
    Wrong
  • 4
    0
    Correct
    Wrong
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Answer : 4. "0"
Explanation :

Answer: D) 0 Explanation: As we know we have 10 letter and 10 different address and one more information given that exactly 9 letter will at the correct address....so the remaining one letter automatically reach to their correct address P(E) = favorable outcomes /total outcomesHere favorable outcomes are '0'.So probability is '0'.

Q: A water tank in a village is normally filled in 8 hours but takes 2 hours longer to fill because of a leak in its bottom. If the tank is full, in how many hrs will the leak empty it ? 2045 0

  • 1
    34 hrs
    Correct
    Wrong
  • 2
    36 hrs
    Correct
    Wrong
  • 3
    38 hrs
    Correct
    Wrong
  • 4
    40 hrs
    Correct
    Wrong
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Answer : 4. "40 hrs"
Explanation :

Answer: D) 40 hrs Explanation: The time taken by the leak to empty the tank = 18 - 110 = 5 - 440 = 140 Therefore, the leak empties the tank in 40 hours.

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