IIT JEE Practice Question and Answer

Q: Find the odd man out of the number series? 18, 37, 76, 155, 314, 635 5828 0

  • 1
    37
    Correct
    Wrong
  • 2
    155
    Correct
    Wrong
  • 3
    314
    Correct
    Wrong
  • 4
    635
    Correct
    Wrong
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Answer : 4. "635"
Explanation :

Answer: D) 635 Explanation: Given Number series is 18     37     76     155     314     635   follows a pattern that,    18   18 x 2 +1 = 37   37 x 2 +2 = 76   76 x 2 +3 = 155   155 x 2 +4 = 314   314 x 2 +5 = 633 not 635       Hence, the odd man is 635.

Q: A person takes 20 minutes more to cover a certain distance by decreasing his speed by 20%. What is the time taken to cover the distance at his original speed ? 5817 0

  • 1
    1hr
    Correct
    Wrong
  • 2
    1 hr 20 min
    Correct
    Wrong
  • 3
    1 hr 10 min
    Correct
    Wrong
  • 4
    50 min
    Correct
    Wrong
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Answer : 2. "1 hr 20 min"
Explanation :

Answer: B) 1 hr 20 min Explanation: Let the distance and original speed be 'd' km and 'k' kmph respectively. d/0.8k - d/k = 20/60 => 5d/4k - d/k = 1/3 => (5d - 4d)/4k = 1/3 => d = 4/3 k Time taken to cover the distance at original speed = d/k = 4/3 hours = 1 hour 20 minutes.

Q: Onion Eating Festival is celebrated in which country ? 5817 0

  • 1
    Sweden
    Correct
    Wrong
  • 2
    Thailand
    Correct
    Wrong
  • 3
    New Delhi
    Correct
    Wrong
  • 4
    Spain
    Correct
    Wrong
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Answer : 4. "Spain"
Explanation :

Answer: D) Spain Explanation: Sweden - Potato Festival Thailand - Vegetarian Festival New Delhi - International Mango Festival Spain - Onion Eating Festival

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Answer : 1. "Both a and b follows"
Explanation :

Answer: A) Both a and b follows Explanation: Both are the right courses of action for effective implementation of Computer Education at primary level urban and rural schools.

Q: Grass : Erosion :: Dam : ? 5772 0

  • 1
    Water
    Correct
    Wrong
  • 2
    Freeze
    Correct
    Wrong
  • 3
    Current
    Correct
    Wrong
  • 4
    Rain
    Correct
    Wrong
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Answer : 1. "Water"
Explanation :

Answer: A) Water Explanation: Here Grass is to Erosion and whereas Dam is to Water. Since Grass prevents Erosion similarly Dam prevents Water flow.   Hence, Grass : Erosion :: Dam : Water.

Q: When the European union formed nations began to? 5766 0

  • 1
    eliminate their home governments.
    Correct
    Wrong
  • 2
    abolish many geographic boundaries.
    Correct
    Wrong
  • 3
    create one unified education system.
    Correct
    Wrong
  • 4
    cooperate on law enforcement.
    Correct
    Wrong
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Answer : 4. "cooperate on law enforcement."
Explanation :

Answer: D) cooperate on law enforcement. Explanation: When the European union formed nations began to cooperate on law enforcement. The European Union is set up with the aim of ending the frequent and bloody wars between neighbours, which culminated in the Second World War.   As of 1950, the European Coal and Steel Community begins to unite European countries economically and politically in order to secure lasting peace. The six founding countries are Belgium, France, Germany, Italy, Luxembourg and the Netherlands. The 1950s are dominated by a cold war between east and west.   The historical roots of the European Union lie in the Second World War. Europeans are determined to prevent such killing and destruction from ever happening again.

Q: निम्नलिखित में से कौन कंट्रोल यूनिट का कार्य नहीं है? 5765 0

  • 1
    निर्देशों की व्याख्या करें
    Correct
    Wrong
  • 2
    निर्देश पढ़ें
    Correct
    Wrong
  • 3
    निर्देश निष्पादित करें
    Correct
    Wrong
  • 4
    प्रत्यक्ष संचालन
    Correct
    Wrong
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Answer : 2. "निर्देश पढ़ें"
Explanation :

Answer: B) निर्देश पढ़ें स्पष्टीकरण: नियंत्रण इकाई कार्य कर सकती है निर्देशों की व्याख्या करें, निर्देश निष्पादित करें और प्रत्यक्ष संचालन करें। लेकिन निर्देश पढ़ना कंट्रोल यूनिट का कार्य नहीं है।

Q: 56% of 225 + 20% of 150 = ? - 109   Find the value of '?' in the above equation 5739 0

  • 1
    264
    Correct
    Wrong
  • 2
    220
    Correct
    Wrong
  • 3
    241
    Correct
    Wrong
  • 4
    None
    Correct
    Wrong
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Answer : 1. "264"
Explanation :

Answer: A) 264 Explanation: Given 56% of 225 + 20% of 150 = ? - 109 we know that a% of b = b% of a Now, 225% of 56 + 20% of 150 = ? - 109 200% of 56 + 25% of 56 + 20% of 150 = ? - 109 112 + 14 + 30 = ? - 109 ? = 112 + 14 + 30 + 109 ? = 264

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