Practice Question and Answer

Q: Find the odd one out of the floowing number series? 270, 261, 279, 252, 289, 243 3149 0

  • 1
    270
    Correct
    Wrong
  • 2
    279
    Correct
    Wrong
  • 3
    289
    Correct
    Wrong
  • 4
    243
    Correct
    Wrong
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Answer : 3. "289"
Explanation :

Answer: C) 289 Explanation: Here the given number series is 270, 261, 279, 252, 289, 243 270 - 9 = 261 261 + 18 = 279 279 - 27 = 252 252 + 36 = 288 (not equals to 289) 288 - 45 = 243   Hence, the odd number in the given number series is 289.

Q: Sum of the ages of Rajesh, Suresh, Mahesh and Dinesh is 76 years. 7 years hence, their age ratio is 7:6:5:8. Find Mahesh’s present age ? 3148 0

  • 1
    17 years
    Correct
    Wrong
  • 2
    13 years
    Correct
    Wrong
  • 3
    14 years
    Correct
    Wrong
  • 4
    16 years
    Correct
    Wrong
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Answer : 2. "13 years"
Explanation :

Answer: B) 13 years Explanation: Given R + S + M + D = 76 => R+7 : S+7 : M+7 : D+7 = 7:6:5:8 => Let the ratio = x => M+7 = 5x => M = 5x-7 => R = 7x-7 => S = 6x-7 => D = 8x-7 => R + S + M + D = 76 => 7x-7 + 6x-7 + 5x-7 + 8x-7 = 76 => 26x - 28 = 76 => 26x = 104 => x = 4 => Mahesh's present age = 5x-7 = 20 - 7 = 13 years.

Q:

नेपाल की राजधानी काठमांडू किस नदी के तट पर अवस्थित है ?

3148 0

  • 1
    Kosi river
    Correct
    Wrong
  • 2
    गोदावरी नदी
    Correct
    Wrong
  • 3
    बागमती नदी
    Correct
    Wrong
  • 4
    नारायणी नदी
    Correct
    Wrong
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Answer : 1. "Kosi river"

Q:

उस स्पीशीज़ को क्या कहते है जिसका प्रतिबंधित वितरण होता 

3147 0

  • 1
    पारिस्थितिक जाति
    Correct
    Wrong
  • 2
    स्थानिक
    Correct
    Wrong
  • 3
    समस्थानिक
    Correct
    Wrong
  • 4
    विस्थानिक
    Correct
    Wrong
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Answer : 2. "स्थानिक "

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Answer : 2. "42 Years"

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Answer : 1. "उत्तर "

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Answer : 3. "$$ -16{2\over3}\% $$"

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