Practice Question and Answer

Q: Cube root of 729 then square it 3118 0

  • 1
    9
    Correct
    Wrong
  • 2
    36
    Correct
    Wrong
  • 3
    81
    Correct
    Wrong
  • 4
    144
    Correct
    Wrong
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Answer : 3. "81"
Explanation :

Answer: C) 81 Explanation: 729 = 9 x 9 x 9 => Cube root of 729 = 9   Now, required square of 9 = 9 x 9 = 81.

Q: How many number of weights do you need to weight 31 kg of Rice if you have one kg of weight stone ? 3117 0

  • 1
    3
    Correct
    Wrong
  • 2
    5
    Correct
    Wrong
  • 3
    7
    Correct
    Wrong
  • 4
    9
    Correct
    Wrong
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Answer : 2. "5"
Explanation :

Answer: B) 5 Explanation: There are total 5 ways.we have only one kg of weight so,2kg = 1kg + 1kg4kg = 1 + 2 + 18kg = 1 + 2 + 4 + 116kg = 1 + 2 + 4 + 8 + 131kg = 1 + 2 + 4 + 8 + 16So 5 weights are needed.

Q:

धात्विक में कौनसी संन्धि होगी?

3117 1

  • 1
    गुण संन्धि
    Correct
    Wrong
  • 2
    यण संन्धि
    Correct
    Wrong
  • 3
    अयादि संन्धि
    Correct
    Wrong
  • 4
    स्वर संन्धि
    Correct
    Wrong
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Answer : 2. "यण संन्धि"

Q: Which are the main gases present in Sun ? 3116 0

  • 1
    Hydrogen and Helium
    Correct
    Wrong
  • 2
    Hydrogen and Argon
    Correct
    Wrong
  • 3
    Argon and Helium
    Correct
    Wrong
  • 4
    Hydrogen and Carbon Diaoxide
    Correct
    Wrong
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Answer : 1. "Hydrogen and Helium"

Q:

वह आरेख चुनिए जो नीचे दिए गए वर्गो के बीच संबंध का सही निरूपण करता है 

गुलाब, फुल, पत्थर

3116 0

  • 1
    Correct
    Wrong
  • 2
    Correct
    Wrong
  • 3
    Correct
    Wrong
  • 4
    Correct
    Wrong
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Answer : 1. ""

Q: निम्न में से विषम संख्या को चुनिए

61, 66, 83, 121, 185

3115 2

  • 1
    185
    Correct
    Wrong
  • 2
    121
    Correct
    Wrong
  • 3
    83
    Correct
    Wrong
  • 4
    66
    Correct
    Wrong
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Answer : 2. "121"
Explanation :

Answer: B) 121 स्पष्टीकरण: दी गई संख्या श्रृंखला 61, 66, 83, 121, 185 है यहां दी गई श्रृंखला एक पैटर्न का अनुसरण करती है, 6161 + 22 + 1 = 6666 + 42 + 1 = 8383 + 62 + 1 = 120 (121)120 + 82 + 1 = 185 इसलिए, दी गई श्रृंखला में विषम व्यक्ति 121 है।

Q: The average age of a couple and their son was 40 years, the son got married and a child was born just two years after their marriage. When child turned to 10 years, then the average age of the family becomes 38 years. What was the age of the daughter in law at the time of marriage ? 3115 0

  • 1
    12 years
    Correct
    Wrong
  • 2
    10 years
    Correct
    Wrong
  • 3
    14 years
    Correct
    Wrong
  • 4
    13 years
    Correct
    Wrong
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Answer : 1. "12 years"
Explanation :

Answer: A) 12 years Explanation: Given the average age of couple and their son = 40 => Sum of age (H +W +S) = 40×3 Let the age of daughter in law at the time of marriage = D years Now after 10 years, (H + S +W) + 3×12 + D +12 + 10 = 38×5 178 + D = 190 D = 190 -178 = 12 years

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