Q. 10 B4.5( 11 Votes )

# A box contains 90 discs which are numbered from 1 to 90. If one disc is selected at random from the box, find the probability that it bears.a perfect square number

There are 90 discs in a box.

Number of outcomes in which discs is selected = 90.

Total perfect square in the box –

12 = 1

22 = 4

32 = 9

42 = 16

52 = 25

62 = 36

72 = 49

82 = 64

92 = 81

Number of favourable cases = 9

Probability that discs bears a perfect square number –

P(Perfect square numbers) = P(Perfect square numbers) = P(Perfect square numbers) = Probability that discs bears a perfect square number is Rate this question :

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