Question

a box contains 50 tickets he bearing a number from 1 to 50. 1 ticket is drawn at random. find the probability 1. number on upper face is two digit number.
2. number on upper face is perfect square

Answer 1

P(E) = No. of favourable outcomes / Total no. of outcomes(50)
1)Let ° E ° be the event of getting a 2 digit number
So,
P(E) = 41/50 {10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50}
2) Let ° E ° be the event of getting a perft square digit number
P(E)
= 7/50{1,4,9,16,25,36,49}

Answer 2

Hope this clears your doubt