CBSE  /  Class 10  /  Maths  /  Probability

  • 1. 
    The probability of getting a bad egg in a lot of 400 is 0.035. The number of bad eggs in the lot is:

  • 7
  • 14
  • 21
  • 28

  • 2. 
    A girl calculate that the probability of her winning the first prize in a lottery is 0.08. If 6000 tickets are sold, how many tickets has she bought?

  • 40
  • 240
  • 480
  • 750

  • 3. 
    One ticket is drawn at random from a bag containing tickets numbered 1 to 40. The probability that the selected ticket has a number which is a multiple of 5 is:

  • \(\frac{1}{5}\)
  • \(\frac{3}{5}\)
  • \(\frac{4}{5}\)
  • \(\frac{1}{3}\)

  • 4. 
    Someone is asked to take a number from 1 to 100. The probability that it is a prime is:

  • \(\frac{1}{5}\)
  • \(\frac{6}{25}\)
  • \(\frac{1}{4}\)
  • \(\frac{13}{50}\)

  • 5. 
    A school has five houses A, B, C, D and E. A class has 23 students, 4 from house A, 8 from house B, 5 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is:

  • \(\frac{4}{23}\)
  • \(\frac{6}{23}\)
  • \(\frac{8}{23}\)
  • \(\frac{17}{23}\)
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