Question

a box contains 90 disk which are numbered from 1 to 90 if one disk is drawn at random from the box find the probability that it bears in a two digit number is a perfect square number

Answer 1

Answer:

1/15

Step-by-step explanation:

total outcomes =90

possible outcomes= 16, 25, 36, 49, 64, 81 => 6

p(e)= 6/90=1/15

Answer 2

two digit perfect squares are : 16,25,36,49,64,81.

so the n(e) will be 6

p(e)=n(e)/n(s)
=6/90
=1/15

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