Question

Cards marked with numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box randomly, then the probability that the number on card is a perfect square.

(A) 9/100

(B) 1/10

(C) 3/10

(D) 19/100



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Answer 1

A.9/100
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Answer 2

$\underline{\boxed{\bold\red{Question}}}$

Cards marked with numbers 2 to 101 are placed in a box and mixed thoroughly. One card is drawn from this box randomly, then the probability that the number on card is a perfect square.

(A) 9/100

(B) 1/10

(C) 3/10

(D) 19/100

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$\underline{\boxed{\bold\blue{Answer}}}$

$\frac{9}{100}$

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$\underline{\boxed{\bold\green{Formula}}}$

$probability \: of \: getting \: an \: event =\frac{Number \: of \: possible \: outcomes}{total \: number \: of \: outcomes }$

$p(A) =\frac{n(A)}{n(s)}$

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$\underline{\boxed{\bold\orange{Explanation}}}$

Total no of outcomes= 100

Total no of possible outcomes= (4,9,16,25,49,64,81,100)=9

$p(getting \: an \: perfect \: square)=\frac{p(a)}{p(s)}$

$p(getting \: an \: perfect \: square)=\frac{9}{100}$

Hence, option A is correct

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