Question Detail

Marks of a student were wrongly entered in computer as 83, actual marks of that student were 63. Due to this mistake average marks of whole class got increased by half (1/2). Find the total number of students in that class.

  • 25
  • 30
  • 35
  • 40
  • 45
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2. Average weight of 10 people increased by 1.5 kg when one person of 45 kg is replaced by a new man. Then weight of the new man is

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3. Reeya obtained 65, 67, 76, 82 and 85 out of 100 in different subjects, What will be the average.

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5. Average of all prime numbers between 30 to 50

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