IIT JEE Practice Question and Answer

Q: STIMULANT : ACTIVITY :: 1575 0

  • 1
    diagnosis : treatment
    Correct
    Wrong
  • 2
    fertilizer : growth
    Correct
    Wrong
  • 3
    symptom : disease
    Correct
    Wrong
  • 4
    food : hunger
    Correct
    Wrong
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Answer : 2. "fertilizer : growth"
Explanation :

Answer: B) fertilizer : growth Explanation:

Q: 'K' cycled from A to B at 10 kmph and returned at the rate of 9 kmph. 'L' cycled both ways at 12 kmph. In the whole journey 'L' took 10 minutes less than 'K'. Find the distance between A and B ? 1575 0

  • 1
    32.1 km
    Correct
    Wrong
  • 2
    15.23 km
    Correct
    Wrong
  • 3
    3.75 km
    Correct
    Wrong
  • 4
    32.1 m
    Correct
    Wrong
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Answer : 3. "3.75 km"
Explanation :

Answer: C) 3.75 km Explanation: Let 'd' be the distance between A and BK -time = d/10 + d/9 = 19d/90 hoursL -time = 2d/12 = d/6 hoursWe know that, 10 min = 1/6 hoursThus, time difference between K and L is given as 10 minutes. => 19d/90 - d/6 = 1/6=> (19d-15d)/90 = 1/6=> 4d/90 = 1/6Thus,d= 15/4 km = 3.75 km. hence the distance between A and B is 3.75 km.

Q: The percentage of irrigated land in India is about 1575 0

  • 1
    66%
    Correct
    Wrong
  • 2
    35%
    Correct
    Wrong
  • 3
    71%
    Correct
    Wrong
  • 4
    22%
    Correct
    Wrong
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Answer : 2. "35%"
Explanation :

Answer: B) 35% Explanation: According to World Bank Indicator India - Land use: Agriculture Land - 1797090 sq. Km (about 60.4%).  Forest Area - 677598 sq. Km. (about 22.08%).  Agriculture Irrigated land - 35 %.

Q: Artificial port of India is? 1575 0

  • 1
    Haldia
    Correct
    Wrong
  • 2
    Chennai or Madras
    Correct
    Wrong
  • 3
    Mangalore
    Correct
    Wrong
  • 4
    Kandla
    Correct
    Wrong
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Answer : 2. "Chennai or Madras"
Explanation :

Answer: B) Chennai or Madras Explanation: Chennai port is known for its Coastal breakwater, artificial, large seaport type of harbor. Chennai Port, formerly known as Madras Port, is the second largest container port of India, behind the Nhava Sheva Port, and the largest port in the Bay of Bengal. It is the third oldest port among the 13 major ports of India

Q: What is the Probability of all cars not clashing each other ? 1574 0

  • 1
    1/8
    Correct
    Wrong
  • 2
    0
    Correct
    Wrong
  • 3
    1/4
    Correct
    Wrong
  • 4
    1
    Correct
    Wrong
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Answer : 3. "1/4"
Explanation :

Answer: C) 1/4 Explanation: Non collision can happen only when all the cars move in same direction. That is either all cars moving in clockwise direction or all cars moving in anti clockwise direction.P(all cars not colliding) = P(all cars moving in the same direction) = P(all cars moving in clockwise direction)  +  P(all cars moving in anticlockwise direction) = [p(A --> C) x p(C --> B) x p(B --> A)]  +  [p(A --> B) x p(B --> C) x p(C --> A)] = [1/2 x 1/2 x 1/2] + [1/2 x 1/2 x 1/2] = 1/8 + 1/8 = 1/4

Q: Sagarmatha friendship is between which two countries ? 1574 0

  • 1
    Pakistan & China
    Correct
    Wrong
  • 2
    Nepal & India
    Correct
    Wrong
  • 3
    India & China
    Correct
    Wrong
  • 4
    China & Nepal
    Correct
    Wrong
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Answer : 4. "China & Nepal"
Explanation :

Answer: D) China & Nepal Explanation: The first ever joint military exercise named 'Sagarmatha Friendship-2017' is all set between Nepal and China. Sagarmatha is the Nepali name for Mt Everest, which stands in between both the countries.

Q: The G-7 is a group consisting of  ? 1574 0

  • 1
    the heads of the states of US, UK, France, Germany, Italy, Canada and Japan
    Correct
    Wrong
  • 2
    the heads of the states of US, UK, France, Germany, Russia, Italy and Japan
    Correct
    Wrong
  • 3
    the finance ministers of US, UK, France, Germany, Italy, Canada and Japan
    Correct
    Wrong
  • 4
    the heads of the states of US, UK, France, Germany, Russia, Canada and Japan
    Correct
    Wrong
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Answer : 3. "the finance ministers of US, UK, France, Germany, Italy, Canada and Japan"
Explanation :

Answer: C) the finance ministers of US, UK, France, Germany, Italy, Canada and Japan Explanation: The finance ministers of US, UK, France, Germany, Italy, Canada and Japan is called as G-7 group.

Q: The perimeter of a square is equal to twice the perimeter of a rectangle of length 8cm and breadth 7cm. What is the circumference of a semicircle whose diameter is equal to the side of the square ? 1574 0

  • 1
    55.12 cm
    Correct
    Wrong
  • 2
    22.54 cm
    Correct
    Wrong
  • 3
    42.51 cm
    Correct
    Wrong
  • 4
    38.57 cm
    Correct
    Wrong
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Answer : 4. "38.57 cm"
Explanation :

Answer: D) 38.57 cm Explanation: We know that perimeter of rectangle = 2(l+b) = 2(8+7)= 30cmGiven perimeter of square is twice the perimeter of rectangle = 2(30) = 60cmTherefore, side of the square is = 1/4 x 60 = 15cmCircumference of the required semicircle = πr + 2r = 227× 152 + 2×152 = 23.57 + 15 = 38.57cm.

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