Question

Cards marked with all two digit no. are placed ina box and are mixed thoroughly one card is drwawn at random. Find probability that it is prefect sqaure no

Answer 1

hope this picture will help u

Answer 2

Answer:

$\frac{1}{15}$

Step-by-step explanation:

Cards marked with all two digit no. are placed in a box

Two digit numbers are from 10 to 99

Perfect squares numbers between 10 to 99 = 16, 25, 36, 49, 64, 81 = 6

Total number form 10 to 99 = 90

So, probability of getting a perfect square = $\frac{6}{90}$

                                                                        = $\frac{1}{15}$

Hence probability that it is prefect square no is $\frac{1}{15}$