a box contain 90 dics which are numbered 1 to 90. If one dice is drawn at random from the box find the probability that it bears. (i)two digit number. (ii)a perfect square number. (iii) a number divided by 5. plz replay fast
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iii is the answer
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I) between 1 to 90 there are 81 two digit numbers so
probability of getting two digit number is = 81/90=9/10
ii) there are 9 perfect square between 1 and 90
so probability= 9/9/=1/10
iii) there are 19 numbers divisible by 5
so the probability= 19/90
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