Question

A cards marked with numbers 9,10,.......99 are placed in bag.What is the probability that card drawn is a perfect square

Answer 1

Answer:

perfect squares are:-

(3)^2=9

(4)^2=16

(5)^2=25

(6)^2=36

(7)^2=49

(8)^2=64

(9)^2=81

hence total number of perfect squares are=7

total number of cards=91

probability of card drawn is perfect square (P)=7/91

Answer 2

1/13  is the probability that card drawn is a perfect square if cards marked with numbers 9,10,.......99

Step-by-step explanation:

cards marked with numbers 9,10,.......99 are placed in bag

Total card = 99 - 9 + 1  = 91

Perfect square  =  3²  to .................9²

= 9 - 3 + 1

= 7

probability that card drawn is a perfect square = 7/91

= 1/13

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