Question

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
a). a two-digit number
b). a perfect square number
c). a number divisible by 5.
d). a number divisible by 2 or 3. e). a number divisible by 2 and 3. f). anumberdivisibleby7.
g). a number multiple of 8.
h). a two digit number divisible by 5.
i). a two digit number divisible by 2.
j). a two digit number divisible by 3

Answer 1

Answer:

b,c,d,e,f are possible for random discs