multiple Nine cards (identical in all respects) are numbered . A card is selected from them at random. Find the probability that the card selected will be:

Solution:

   

From numbers

   

, there is one number which is an even number as well as multiple of

   

So, favorable number of events

   

Hence, probability of selecting a card with a number which is an even number as well as multiple of

   

   

   

From numbers

   

, there are

   

numbers which are even numbers or a multiple of

   

i.e.

   

So, favorable number of events

   

Hence, probability of selecting a card with a number which is an even number or a multiple of