A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn

at random from the box, find the probability that it bears

(i) a two-digit number

(ii) a perfect square number.

(iii) a number divisible by 5.

plz solve this question

Step-by-step explanation:A

BOXCONTAIN90DICS1TO90MEANSTHATTHEYARE1TO90NUMBERSPROBLATI=NUMBER/100.(MYOWNFORMULAL)90/100=9/10ISTHEPROBLATYOFALLDICSBUTOFONEDICSIS9/10×50=45tgnumberofthedicswillbethediscofprobality.............